Add AirBnB setting to jshint settings file.

.jshintrc

@@ -1,3 +1,48 @@
 {
-  "node": true
+    /*
+    * ENVIRONMENTS
+    * =================
+    */
+
+    // Define globals exposed by Node.js.
+    "node": true,
+
+    /*
+    * ENFORCING OPTIONS
+    * =================
+    */
+
+    // Force all variable names to use either camelCase style or UPPER_CASE
+    // with underscores.
+    "camelcase": true,
+
+    // Prohibit use of == and != in favor of === and !==.
+    "eqeqeq": true,
+
+    // Suppress warnings about == null comparisons.
+    "eqnull": true,
+
+    // Enforce tab width of 2 spaces.
+    "indent": 2,
+
+    // Prohibit use of a variable before it is defined.
+    "latedef": true,
+
+    // Require capitalized names for constructor functions.
+    "newcap": true,
+
+    // Enforce use of single quotation marks for strings.
+    "quotmark": "single",
+
+    // Prohibit trailing whitespace.
+    "trailing": true,
+
+    // Prohibit use of explicitly undeclared variables.
+    "undef": true,
+
+    // Warn when variables are defined but never used.
+    "unused": true,
+
+    // Enforce line length to 80 characters
+    "maxlen": 80
 }

public/js/.jshintrc

@@ -0,0 +1,54 @@
+{
+    /*
+    * ENVIRONMENTS
+    * =================
+    */
+
+    // Define globals exposed by modern browsers.
+    "browser": true,
+
+    // Define globals exposed by jQuery.
+    "jquery": true,
+
+    /*
+    * ENFORCING OPTIONS
+    * =================
+    */
+
+    // Force all variable names to use either camelCase style or UPPER_CASE
+    // with underscores.
+    "camelcase": true,
+
+    // Prohibit use of == and != in favor of === and !==.
+    "eqeqeq": true,
+
+    // Suppress warnings about == null comparisons.
+    "eqnull": true,
+
+    // Enforce tab width of 2 spaces.
+    "indent": 2,
+
+    // Prohibit use of a variable before it is defined.
+    "latedef": true,
+
+    // Require capitalized names for constructor functions.
+    "newcap": true,
+
+    // Enforce use of single quotation marks for strings.
+    "quotmark": "single",
+
+    // Prohibit trailing whitespace.
+    "trailing": true,
+
+    // Prohibit use of explicitly undeclared variables.
+    "undef": true,
+
+    // Warn when variables are defined but never used.
+    "unused": true,
+
+    // Enforce line length to 80 characters
+    "maxlen": 80,
+
+    // Enforce placing 'use strict' at the top function scope
+      "strict": true'
+}