update for version 2.1.0

git-svn-id: https://plugins.svn.wordpress.org/advanced-post-slider/trunk@936028 b8457f37-d9ea-0310-8a92-e5e31aec5664
update for version 2.1.0

git-svn-id: https://plugins.svn.wordpress.org/advanced-post-slider/trunk@936029 b8457f37-d9ea-0310-8a92-e5e31aec5664