Merge pull request #1 from rpelt/patch-1

added css grid

Author: frederikbosch

lib/modernizr.js

@@ -42,6 +42,7 @@ module.exports = {
     "test/css/transforms",
     "test/css/transforms3d",
     "test/css/transitions",
+    "test/css/cssgrid",
     "test/storage/localstorage",
     "test/storage/sessionstorage",
     "test/storage/websqldatabase",
@@ -50,4 +51,4 @@ module.exports = {
     "test/svg/smil",
     "test/workers/webworkers"
   ]
-};
+};