re-enable requireCamelCaseOrUpperCaseIdentifiers in JSCS & use `null` to override it for Gruntfile

Gruntfile.js

@@ -66,6 +66,7 @@ module.exports = function (grunt) {
       },
       grunt: {
         options: {
+          'requireCamelCaseOrUpperCaseIdentifiers': null,
           'requireParenthesesAroundIIFE': true
         },
         src: '<%= jshint.grunt.src %>'

js/.jscsrc

@@ -8,6 +8,7 @@
   "disallowSpaceAfterPrefixUnaryOperators": ["++", "--", "+", "-", "~"],
   "disallowSpaceBeforePostfixUnaryOperators": ["++", "--"],
   "disallowTrailingWhitespace": true,
+  "requireCamelCaseOrUpperCaseIdentifiers": true,
   "requireLeftStickedOperators": [","],
   "requireLineFeedAtFileEnd": true,
   "requireRightStickedOperators": ["!"],