Fixes: Error: Cannot find module 'CSSSelect'

 * Fixes [AriaMinaei/pretty-error#1](AriaMinaei/pretty-error#1)
 * [Waiting for merge of PR](AriaMinaei/pretty-error#8)

Author: Nicolab

package.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "longjohn":       "0.2.x",
     "prettyjson":     "1.x",
-    "pretty-error":   "~1.1.1"
+    "pretty-error":   "Nicolab/pretty-error"
   },
   "devDependencies": {
     "unit.js": "0.x.x"