In README.md update last release version, add forum badge and make ba…

…dges more consistent

README.md

@@ -2,11 +2,11 @@
 
 [![license](http://img.shields.io/badge/license-CC0%201.0%20Universal-blue.svg)](https://github.com/moqui/mantle-udm/blob/master/LICENSE.md)
 [![release](http://img.shields.io/github/release/moqui/mantle-udm.svg)](https://github.com/moqui/mantle-udm/releases)
-[![commits since release](http://img.shields.io/github/commits-since/moqui/mantle-udm/v2.1.1.svg)](https://github.com/moqui/mantle-udm/commits/master)
+[![commits since release](http://img.shields.io/github/commits-since/moqui/mantle-udm/v2.2.0.svg)](https://github.com/moqui/mantle-udm/commits/master)
 
+[![Discourse Forum](https://img.shields.io/badge/moqui%20forum-discourse-blue.svg)](https://forum.moqui.org)
+[![Google Group](https://img.shields.io/badge/google%20group-moqui-blue.svg)](https://groups.google.com/d/forum/moqui)
 [![LinkedIn Group](https://img.shields.io/badge/linked%20in%20group-moqui-blue.svg)](https://www.linkedin.com/groups/4640689)
-[![Google Group](https://img.shields.io/badge/google%20group-mantleba-blue.svg)](https://groups.google.com/d/forum/mantleba)
-[![Join the chat at https://gitter.im/moqui/mantle-usl](https://badges.gitter.im/moqui/mantle-usl.svg)](https://gitter.im/moqui/mantle-usl?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Stack Overflow](https://img.shields.io/badge/stack%20overflow-moqui-blue.svg)](http://stackoverflow.com/questions/tagged/moqui)
 
 For details about Mantle see its page on moqui.org: