added setPlaying and now working on docs

lib/server.js

@@ -142,6 +142,11 @@ var Server = (function () {
 		value: function toString() {
 			return this.name;
 		}
+	}, {
+		key: "equals",
+		value: function equals(object) {
+			return object.id === this.id;
+		}
 	}, {
 		key: "iconURL",
 		get: function get() {