Rename 'common' to 'config'.

@@ -4,8 +4,8 @@ module.exports = function(grunt) {
     /* global require */
     'use strict';
 
-    var common = {};
-    common.jshint = {
+    var config = {};
+    config.jshint = {
         options: {
         },
         all: [
@@ -16,5 +16,5 @@ module.exports = function(grunt) {
     };
 
     var montyPython = require('./grunt-monty-python')(grunt);
-    montyPython.createConfig(common);
+    montyPython.createConfig(config);
 };