Tests: add IE launcher for debugging IE11 on Windows

Author: timmywil

Gruntfile.js

@@ -239,6 +239,10 @@ module.exports = function( grunt ) {
 			"firefox-debug": {
 				browsers: [ "Firefox" ],
 				singleRun: false
+			},
+			"ie-debug": {
+				browsers: [ "IE" ],
+				singleRun: false
 			}
 		},
 		watch: {

package.json

@@ -50,6 +50,7 @@
     "karma-browserstack-launcher": "1.3.0",
     "karma-chrome-launcher": "2.2.0",
     "karma-firefox-launcher": "1.1.0",
+    "karma-ie-launcher": "1.0.0",
     "karma-qunit": "1.2.1",
     "load-grunt-tasks": "4.0.0",
     "native-promise-only": "0.8.1",