removed 0.2 version

git-svn-id: https://plugins.svn.wordpress.org/web-simple-image-gallery/trunk@905317 b8457f37-d9ea-0310-8a92-e5e31aec5664
mofify readme file

git-svn-id: https://plugins.svn.wordpress.org/web-simple-image-gallery/trunk@905322 b8457f37-d9ea-0310-8a92-e5e31aec5664