removed screenshots from the plugin download

git-svn-id: https://plugins.svn.wordpress.org/sharify/trunk@1034135 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixed something

git-svn-id: https://plugins.svn.wordpress.org/sharify/trunk@1034136 b8457f37-d9ea-0310-8a92-e5e31aec5664