better error messaging when js fails to compile when reloading

src/meta.js

@@ -38,11 +38,9 @@ var async = require('async'),
 			], function(err) {
 				if (!err) {
 					emitter.emit('nodebb:ready');
-					callback.apply(null, arguments);
-				} else {
-					console.log('failed!');
-					emitter.emit('nodebb:reload.failed');
 				}
+
+				callback.apply(null, arguments);
 			});
 		});
 	};

src/meta/js.js

@@ -166,7 +166,7 @@ module.exports = function(Meta) {
 				winston.error('[meta/js] Could not compile client-side scripts! ' + message.payload.message);
 				minifier.kill();
 				if (typeof callback === 'function') {
-					callback(err);
+					callback(new Error(message.payload.message));
 				} else {
 					process.exit(0);
 				}