fix travis ci build, maybe? thanks @mtscout6

Author: ryanflorence

karma.conf.js

@@ -3,6 +3,8 @@ var webpack = require('webpack');
 module.exports = function (config) {
   config.set({
 
+    browserNoActivityTimeout: 30000,
+
     browsers: [ process.env.CONTINUOUS_INTEGRATION ? 'Firefox' : 'Chrome' ],
 
     singleRun: process.env.CONTINUOUS_INTEGRATION === 'true',