Updating version 1.5.1

git-svn-id: https://plugins.svn.wordpress.org/wp-team-manager/trunk@890593 b8457f37-d9ea-0310-8a92-e5e31aec5664
uplaoding version 1.5.1

git-svn-id: https://plugins.svn.wordpress.org/wp-team-manager/trunk@890599 b8457f37-d9ea-0310-8a92-e5e31aec5664