+ added jshintrc.

.jshintrc

+{
+    // JSHint Default Configuration File (as on JSHint website)
+    // See http://jshint.com/docs/ for more details
+
+    "maxerr"        : 30,       // {int} Maximum error before stopping
+
+    // Enforcing
+    // "bitwise"       : true,     // true: Prohibit bitwise operators (&, |, ^, etc.)
+    // "camelcase"     : false,    // true: Identifiers must be in camelCase
+    // "curly"         : true,     // true: Require {} for every new block or scope
+    // "eqeqeq"        : true,     // true: Require triple equals (===) for comparison
+    // "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
+    // "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()
+    // "immed"         : false,    // true: Require immediate invocations to be wrapped in parens e.g. `(function () { } ());`
+    // "indent"        : 4,        // {int} Number of spaces to use for indentation
+    // "latedef"       : false,    // true: Require variables/functions to be defined before being used
+    // "newcap"        : false,    // true: Require capitalization of all constructor functions e.g. `new F()`
+    // "noarg"         : true,     // true: Prohibit use of `arguments.caller` and `arguments.callee`
+    // "noempty"       : true,     // true: Prohibit use of empty blocks
+    // "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.
+    // "nonew"         : false,    // true: Prohibit use of constructors for side-effects (without assignment)
+    // "plusplus"      : false,    // true: Prohibit use of `++` & `--`
+    // "quotmark"      : false,    // Quotation mark consistency:
+    //                             //   false    : do nothing (default)
+    //                             //   true     : ensure whatever is used is consistent
+    //                             //   "single" : require single quotes
+    //                             //   "double" : require double quotes
+    // "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)
+    // "unused"        : true,     // true: Require all defined variables be used
+    "strict"        : false,     // true: Requires all functions run in ES5 Strict Mode
+    // "maxparams"     : false,    // {int} Max number of formal params allowed per function
+    // "maxdepth"      : false,    // {int} Max depth of nested blocks (within functions)
+    // "maxstatements" : false,    // {int} Max number statements per function
+    // "maxcomplexity" : false,    // {int} Max cyclomatic complexity per function
+    // "maxlen"        : false,    // {int} Max number of characters per line
+
+    // // Relaxing
+    // "asi"           : false,     // true: Tolerate Automatic Semicolon Insertion (no semicolons)
+    // "boss"          : false,     // true: Tolerate assignments where comparisons would be expected
+    // "debug"         : false,     // true: Allow debugger statements e.g. browser breakpoints.
+    // "eqnull"        : false,     // true: Tolerate use of `== null`
+    // "es5"           : false,     // true: Allow ES5 syntax (ex: getters and setters)
+    // "esnext"        : false,     // true: Allow ES.next (ES6) syntax (ex: `const`)
+    // "moz"           : false,     // true: Allow Mozilla specific syntax (extends and overrides esnext features)
+    //                              // (ex: `for each`, multiple try/catch, function expression…)
+    // "evil"          : false,     // true: Tolerate use of `eval` and `new Function()`
+    // "expr"          : false,     // true: Tolerate `ExpressionStatement` as Programs
+    // "funcscope"     : false,     // true: Tolerate defining variables inside control statements
+    // "globalstrict"  : false,     // true: Allow global "use strict" (also enables 'strict')
+    // "iterator"      : false,     // true: Tolerate using the `__iterator__` property
+    // "lastsemic"     : false,     // true: Tolerate omitting a semicolon for the last statement of a 1-line block
+    // "laxbreak"      : false,     // true: Tolerate possibly unsafe line breakings
+    // "laxcomma"      : false,     // true: Tolerate comma-first style coding
+    // "loopfunc"      : false,     // true: Tolerate functions being defined in loops
+    // "multistr"      : false,     // true: Tolerate multi-line strings
+    // "noyield"       : false,     // true: Tolerate generator functions with no yield statement in them.
+    // "notypeof"      : false,     // true: Tolerate invalid typeof operator values
+    // "proto"         : false,     // true: Tolerate using the `__proto__` property
+    // "scripturl"     : false,     // true: Tolerate script-targeted URLs
+    // "shadow"        : false,     // true: Allows re-define variables later in code e.g. `var x=1; x=2;`
+    // "sub"           : false,     // true: Tolerate using `[]` notation when it can still be expressed in dot notation
+    // "supernew"      : false,     // true: Tolerate `new function () { ... };` and `new Object;`
+    // "validthis"     : false,     // true: Tolerate using this in a non-constructor function
+
+    // // Environments
+    // "browser"       : true,     // Web Browser (window, document, etc)
+    // "browserify"    : false,    // Browserify (node.js code in the browser)
+    // "couch"         : false,    // CouchDB
+    // "devel"         : true,     // Development/debugging (alert, confirm, etc)
+    // "dojo"          : false,    // Dojo Toolkit
+    // "jasmine"       : false,    // Jasmine
+    // "jquery"        : false,    // jQuery
+    // "mocha"         : true,     // Mocha
+    // "mootools"      : false,    // MooTools
+    // "node"          : false,    // Node.js
+    // "nonstandard"   : false,    // Widely adopted globals (escape, unescape, etc)
+    // "prototypejs"   : false,    // Prototype and Scriptaculous
+    // "qunit"         : false,    // QUnit
+    // "rhino"         : false,    // Rhino
+    // "shelljs"       : false,     // ShellJS
+    // "worker"        : false,    // Web Workers
+    // "wsh"           : false,    // Windows Scripting Host
+    // "yui"           : false,    // Yahoo User Interface
+
+    // Custom Globals
+    "globals"       : {"module": true, "require": true}        // additional predefined global variables
+}