Update to version 1.6.0

git-svn-id: https://plugins.svn.wordpress.org/wp-team-manager/trunk@1018322 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update FAQ

git-svn-id: https://plugins.svn.wordpress.org/wp-team-manager/trunk@1018324 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update FAQ

git-svn-id: https://plugins.svn.wordpress.org/wp-team-manager/trunk@1018326 b8457f37-d9ea-0310-8a92-e5e31aec5664