1. added scheduling information 
2. added feature to choose custom image


git-svn-id: https://plugins.svn.wordpress.org/facebook-publish/trunk@1007806 b8457f37-d9ea-0310-8a92-e5e31aec5664
updates 

git-svn-id: https://plugins.svn.wordpress.org/facebook-publish/trunk@1007807 b8457f37-d9ea-0310-8a92-e5e31aec5664