diff --git a/.snyk b/.snyk
new file mode 100644
index 0000000..b2410ba
--- /dev/null
+++ b/.snyk
@@ -0,0 +1,422 @@
+# Snyk (https://snyk.io) policy file, patches or ignores known vulnerabilities.
+version: v1.13.5
+ignore: {}
+# patches apply the minimum changes required to fix a vulnerability
+patch:
+  SNYK-JS-LODASH-450202:
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-generator > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-systemjs > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-commonjs > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-computed-properties > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-helpers > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-sticky-regex > babel-helper-regex > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-unicode-regex > babel-helper-regex > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-sticky-regex > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-shorthand-properties > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-commonjs > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-generator > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-duplicate-keys > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-systemjs > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-computed-properties > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-helpers > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-helpers > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-commonjs > babel-plugin-transform-strict-mode > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-generator > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-regenerator > regenerator-transform > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-unicode-regex > babel-helper-regex > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-sticky-regex > babel-helper-regex > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-plugin-transform-class-constructor-call > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-computed-properties > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-helper-call-delegate > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-systemjs > babel-helper-hoist-variables > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-helper-call-delegate > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-systemjs > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-optimise-call-expression > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-helpers > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-helper-optimise-call-expression > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-helper-optimise-call-expression > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-computed-properties > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-systemjs > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-plugin-transform-strict-mode > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-block-scoping > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-plugin-transform-class-constructor-call > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-helper-call-delegate > babel-helper-hoist-variables > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-helpers > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-plugin-transform-class-constructor-call > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-parameters > babel-helper-call-delegate > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-generator > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-function-name > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-helpers > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-function-name > babel-helper-function-name > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-replace-supers > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-helpers > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-object-super > babel-helper-replace-supers > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-plugin-transform-strict-mode > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-plugin-transform-class-constructor-call > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-helper-explode-class > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-helper-explode-class > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-helper-explode-class > babel-helper-bindify-decorators > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-core > babel-register > babel-core > babel-helpers > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-classes > babel-helper-define-map > babel-helper-function-name > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-helper-explode-class > babel-helper-bindify-decorators > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-helper-explode-class > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-es2015 > babel-plugin-transform-es2015-modules-umd > babel-plugin-transform-es2015-modules-amd > babel-plugin-transform-es2015-modules-commonjs > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-exponentiation-operator > babel-helper-builder-binary-assignment-operator-visitor > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-decorators > babel-helper-explode-class > babel-helper-bindify-decorators > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-exponentiation-operator > babel-helper-builder-binary-assignment-operator-visitor > babel-helper-explode-assignable-expression > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-plugin-transform-class-properties > babel-helper-function-name > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-exponentiation-operator > babel-helper-builder-binary-assignment-operator-visitor > babel-helper-explode-assignable-expression > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-exponentiation-operator > babel-helper-builder-binary-assignment-operator-visitor > babel-helper-explode-assignable-expression > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > babel-traverse > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-helper-get-function-arity > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-generator-functions > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
+    - babel-preset-stage-0 > babel-preset-stage-1 > babel-preset-stage-2 > babel-preset-stage-3 > babel-plugin-transform-async-to-generator > babel-helper-remap-async-to-generator > babel-helper-function-name > babel-template > babel-traverse > babel-types > lodash:
+        patched: '2019-07-04T07:18:51.747Z'
diff --git a/package.json b/package.json
index bd511db..07c2d79 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,9 @@
   "description": "Data Structures and Algorithms in Node.js",
   "main": "main.js",
   "scripts": {
-    "test": "node test"
+    "test": "node test",
+    "snyk-protect": "snyk protect",
+    "prepublish": "npm run snyk-protect"
   },
   "keywords": [
     "data",
@@ -27,6 +29,8 @@
     "babel-core": "^6.4.5",
     "babel-polyfill": "^6.3.14",
     "babel-preset-es2015": "^6.3.13",
-    "babel-preset-stage-0": "^6.3.13"
-  }
+    "babel-preset-stage-0": "^6.3.13",
+    "snyk": "^1.189.0"
+  },
+  "snyk": true
 }