Updating trunk to 1.6.0

git-svn-id: https://plugins.svn.wordpress.org/wordpoints/trunk@970995 b8457f37-d9ea-0310-8a92-e5e31aec5664
Make 1.6.0 the stable tag

git-svn-id: https://plugins.svn.wordpress.org/wordpoints/trunk@971002 b8457f37-d9ea-0310-8a92-e5e31aec5664