chore(build): improve Karma reporting

Author: pkozlowski-opensource

Gruntfile.js

@@ -138,6 +138,7 @@ module.exports = function(grunt) {
       },
       travis: {
         singleRun: true,
+        reporters: ['dots'],
         browsers: ['Firefox']
       },
       coverage: {

karma.conf.js

@@ -34,6 +34,8 @@ browsers = [
 // possible values: dots || progress
 reporters = ['progress'];
 
+reportSlowerThan = 100;
+
 // web server port
 port = 9018;