MTWP-25 Added filtering by groups - to work once the service is working properly

git-svn-id: https://plugins.svn.wordpress.org/meeting-truth/trunk@994711 b8457f37-d9ea-0310-8a92-e5e31aec5664
Tagging version 1.2.0

git-svn-id: https://plugins.svn.wordpress.org/meeting-truth/trunk@994716 b8457f37-d9ea-0310-8a92-e5e31aec5664