committing v1.7.9

git-svn-id: https://plugins.svn.wordpress.org/simple-membership/trunk@979431 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme file fix

git-svn-id: https://plugins.svn.wordpress.org/simple-membership/trunk@979434 b8457f37-d9ea-0310-8a92-e5e31aec5664