Update migrator logging

lib/migrator.js

@@ -14,7 +14,7 @@ module.exports = (function() {
       path: __dirname + '/../migrations',
       from: null,
       to: null,
-      logging: console.log,
+      logging: this.sequelize.log.bind(this.sequelize),
       filesFilter: /\.js$/
     }, options || {});
   };