version 2.2.7
IMPROVED: Performance optimization. 
IMPROVED: Added several new internal hints and tips. 
FIXED: A bug of not being able to activate a license key manually. 

git-svn-id: https://plugins.svn.wordpress.org/social-locker/trunk@782979 b8457f37-d9ea-0310-8a92-e5e31aec5664