clean the trunk

git-svn-id: https://plugins.svn.wordpress.org/simplicity-gallery/trunk@960415 b8457f37-d9ea-0310-8a92-e5e31aec5664
add version 1.3 into the trunk

git-svn-id: https://plugins.svn.wordpress.org/simplicity-gallery/trunk@960416 b8457f37-d9ea-0310-8a92-e5e31aec5664