deleting old image

git-svn-id: https://plugins.svn.wordpress.org/slidermania/trunk@760187 b8457f37-d9ea-0310-8a92-e5e31aec5664
uploading new image

git-svn-id: https://plugins.svn.wordpress.org/slidermania/trunk@760188 b8457f37-d9ea-0310-8a92-e5e31aec5664