forgot to un-comment some migrations.

Author: Thomas Rueckstiess

src/app/migrations/index.js

@@ -5,10 +5,10 @@ var electronApp = require('electron').remote.app;
 
 var migrations = {
   '1.1.2': require('./1.1.2'),
-  '1.2.0': require('./1.2.0')
-  // '1.3.0-beta.0': require('./1.3.0-beta.0'),
-  // '1.3.0-beta.1': require('./1.3.0-beta.1'),
-  // '1.3.0-beta.3': require('./1.3.0-beta.3')
+  '1.2.0': require('./1.2.0'),
+  '1.3.0-beta.0': require('./1.3.0-beta.0'),
+  '1.3.0-beta.1': require('./1.3.0-beta.1'),
+  '1.3.0-beta.3': require('./1.3.0-beta.3')
 };
 
 var migrate = require('app-migrations')(migrations);