Correct version number

git-svn-id: https://plugins.svn.wordpress.org/gif-animation-preview/trunk@953340 b8457f37-d9ea-0310-8a92-e5e31aec5664
version text

git-svn-id: https://plugins.svn.wordpress.org/gif-animation-preview/trunk@953341 b8457f37-d9ea-0310-8a92-e5e31aec5664