chore(tests): fix test output on CI

Use reporters in karma.conf.js to avoid confusion in the future.

Author: chrisirhc

Gruntfile.js

@@ -133,7 +133,7 @@ module.exports = function(grunt) {
       jenkins: {
         singleRun: true,
         colors: false,
-        reporter: ['dots', 'junit'],
+        reporters: ['dots', 'junit'],
         browsers: ['Chrome', 'ChromeCanary', 'Firefox', 'Opera', '/Users/jenkins/bin/safari.sh', '/Users/jenkins/bin/ie9.sh']
       },
       travis: {

karma.conf.js

@@ -31,7 +31,7 @@ browsers = [
 
 // test results reporter to use
 // possible values: dots || progress
-reporter = 'progress';
+reporters = ['progress'];
 
 // web server port
 port = 9018;