MPIDE-28: 👕: update jscs; note rules from jshint that need converted still

.jscsrc

@@ -1,4 +1,13 @@
 {
+//from jshint:
+// "camelcase": true,
+// "immed": true,
+// "newcap": true,
+// "trailing": true,
+// "maxlen": 140,
+
+  "esnext": true,
+  "fileExtensions": [".js", ".es6"],
   "disallowImplicitTypeConversion": ["numeric", "boolean", "binary", "string"],
   "disallowKeywords": ["with"],
   "disallowKeywordsOnNewLine": ["else", "catch", "finally"],