tagging version 0.5.1

git-svn-id: https://plugins.svn.wordpress.org/share-on-diaspora/trunk@872301 b8457f37-d9ea-0310-8a92-e5e31aec5664
update. removing extra files

git-svn-id: https://plugins.svn.wordpress.org/share-on-diaspora/trunk@872302 b8457f37-d9ea-0310-8a92-e5e31aec5664