fix logger call

lib/core/logger.js

@@ -3,7 +3,7 @@ let fs = require('./fs.js');
 
 class Logger {
   constructor(options) {
-    this.events = options.events;
+    this.events = options.events || {emit: function(){}};
     this.logLevels = ['error', 'warn', 'info', 'debug', 'trace'];
     this.logLevel = options.logLevel || 'info';
     this.logFunction = options.logFunction || console.log;

lib/index.js

@@ -20,7 +20,7 @@ class Embark {
     let Config = require('./core/config.js');
 
     this.events = new Events();
-    this.logger = new Logger({logLevel: 'debug'});
+    this.logger = new Logger({logLevel: 'debug', events: this.events});
 
     this.config = new Config({env: env, logger: this.logger, events: this.events});
     this.config.loadConfigFiles(options);