version 1.5.4

git-svn-id: https://plugins.svn.wordpress.org/recent-facebook-posts/trunk@783927 b8457f37-d9ea-0310-8a92-e5e31aec5664
options.php should be options-general.php

git-svn-id: https://plugins.svn.wordpress.org/recent-facebook-posts/trunk@783930 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme link fix

git-svn-id: https://plugins.svn.wordpress.org/recent-facebook-posts/trunk@784841 b8457f37-d9ea-0310-8a92-e5e31aec5664