Updated for ACF5

git-svn-id: https://plugins.svn.wordpress.org/advanced-custom-fields-limiter-field/trunk@947829 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated read me

git-svn-id: https://plugins.svn.wordpress.org/advanced-custom-fields-limiter-field/trunk@947830 b8457f37-d9ea-0310-8a92-e5e31aec5664