test: enable autoWatch in karma.conf.js (#70)

* without this change `npm test` fires up Karma but does nothing further with it

Author: mgol

karma.conf.js

@@ -55,8 +55,8 @@ module.exports = function (config) {
     port: 9876,
     colors: true,
     logLevel: config.LOG_INFO,
-    autoWatch: false,
+    autoWatch: true,
     browsers: ['CustomChrome'],
     singleRun: false
-  })
+  });
 };