Use window.RocketChat for livechat

.eslintrc.js

@@ -103,8 +103,7 @@ module.exports = {
 		'no-unreachable': 2,                       // disallow unreachable statements after a return, throw, continue, or break statement
 		'no-unused-vars': [2, {                    // disallow declaration of variables that are not used in the code
 			'vars': 'all',
-			'args': 'after-used',
-			'varsIgnorePattern': 'RocketChat'
+			'args': 'after-used'
 		}],
 
 		// 'array-bracket-spacing': [0, 'never'],

packages/rocketchat-livechat/assets/rocket-livechat.js

@@ -8,10 +8,8 @@
 // 		h.parentNode.insertBefore(j, h);
 // 	})(window, document, 'script', 'initRocket', 'http://localhost:5000/livechat');
 // </script>
-/* globals RocketChat:true */
-/* exported RocketChat */
 
-var RocketChat = (function(w) {
+window.RocketChat = (function(w) {
 	var config = {};
 	var widget;
 	var iframe;