Set version to 2.2.1dev for develop branch

skin.json

@@ -1,6 +1,6 @@
 {
 	"name": "Foreground",
-	"version": "2.2.0",
+	"version": "2.2.1dev",
 	"author": [
 		"Garrick Van Buren",
 		"Jamie Thingelstad",