Upgrade systemjs to 6.1.2 (from 6.0.0)

Author: bdukes

package.json

@@ -68,7 +68,7 @@
     "select2": "4.0.10",
     "spectrum-colorpicker": "1.8.0",
     "swiper": "4.5.1",
-    "systemjs": "6.0.0",
+    "systemjs": "6.1.2",
     "tableexport": "5.2.0",
     "tinymce": "5.0.16",
     "underscore": "1.9.1",

yarn.lock

@@ -5368,10 +5368,10 @@ swiper@4.5.1:
     dom7 "^2.1.3"
     ssr-window "^1.0.1"
 
-systemjs@6.0.0:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/systemjs/-/systemjs-6.0.0.tgz#167fdb7c15195ee2773e25c958cd9a0351ac85fe"
-  integrity sha512-Dc7TBShsS8baQKZBsh+bOZOHPS82V7IQWQ6IxR+HCWz4+jN2WSQjj+LIS2KbX0tdB2QAG/isSexgFFk40Z+UYg==
+systemjs@6.1.2:
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/systemjs/-/systemjs-6.1.2.tgz#5b15020c1934d9e8f96a5c95b7a4a5e60b6d0ec3"
+  integrity sha512-QN0E62xEGCjp4+Wwg5o50CgdlMkQdUkiw5rHKQNJ454iKJCsFmQjPBoCEs1xq8mM/J+eYtLkZS0JCcay/gaEFw==
 
 tableexport@5.2.0:
   version "5.2.0"