Test with ms edge and os x 10.11

Author: mar10

Gruntfile.coffee

@@ -93,9 +93,11 @@ module.exports = (grunt) ->
             { browserName: "internet explorer", version: "9", platform: "Windows 7" }
             { browserName: "internet explorer", version: "10", platform: "Windows 8" }
             { browserName: "internet explorer", version: "11", platform: "Windows 8.1" }
+            { browserName: "microsoftedge", platform: "Windows 10" }
             { browserName: "safari", version: "6", platform: "OS X 10.8" }
             { browserName: "safari", version: "7", platform: "OS X 10.9" }
             { browserName: "safari", version: "8", platform: "OS X 10.10" }
+            { browserName: "safari", version: "8.1", platform: "OS X 10.11" }
           ]
           testname: "jquery.ui-contextmenu qunit tests (jQuery UI 10)"
       ui: # UI Menu 11+ dropped support for IE7