upgrade 53-beta to 53

ready for alpha release and changelog

user.js

@@ -1,7 +1,7 @@
 /******
 * name: ghacks user.js
-* date: 15 April 2017
-* version 53-beta: Achy Breaky Pants
+* date: 27 April 2017
+* version 53: Achy Breaky Pants
 *   "But don't tell my pants, my achy breaky pants, I just don't think they'd understand"
 * authors: v52+ github | v51- www.ghacks.net
 * url: https://github.com/ghacksuserjs/ghacks-user.js