Added deleting messages

lib/Util/Cache.js

@@ -68,6 +68,19 @@ var Cache = (function (_Array) {
 		}
 	};
 
+	Cache.prototype.remove = function remove(data) {
+		var index = this.indexOf(data);
+		if (~index) {
+			this.splice(index, 1);
+		} else {
+			var item = this.get("id", data.id);
+			if (item) {
+				this.splice(this.indexOf(item), 1);
+			}
+		}
+		return false;
+	};
+
 	return Cache;
 })(Array);