added Exception handling and added applyCommands

app/Lib/Utilities/Exception.js

@@ -0,0 +1,37 @@
+define([
+],
+ 
+function() {
+ 
+    function Exception(/* arguments */) {
+    	var message = [];
+    	for (var i = 0; i < arguments.length; i++) {
+    		var arg = arguments[i];
+    		if (typeof arg == "object") {
+    			var name = this.getTypeOfObject(arg);
+    			message.push(name); 
+    		} else {
+    			message.push(arg);
+    		}
+    	};
+
+        this.message = message.join(" ");
+
+    	Error.call(this, this.message);
+    }
+
+    Exception.prototype = Object.create(Error.prototype);
+
+    Exception.prototype.toString = function() {
+		return this.message;
+    };
+
+    Exception.prototype.getTypeOfObject = function (obj) {
+        var funcNameRegex = /function (.{1,})\(/;
+        var results = (funcNameRegex).exec((obj).constructor.toString());
+        return (results && results.length > 1) ? results[1] : "";
+    }
+  
+    return Exception;
+ 
+});