v7.5.0

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@932456 b8457f37-d9ea-0310-8a92-e5e31aec5664
v7.5.0

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@932457 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme update

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@932459 b8457f37-d9ea-0310-8a92-e5e31aec5664