Version changed to 2.3-RC1

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@775287 b8457f37-d9ea-0310-8a92-e5e31aec5664
Error checking

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@775288 b8457f37-d9ea-0310-8a92-e5e31aec5664