Release 0.5.0

git-svn-id: https://plugins.svn.wordpress.org/whats-my-ip/trunk@955465 b8457f37-d9ea-0310-8a92-e5e31aec5664
Removes old files

git-svn-id: https://plugins.svn.wordpress.org/whats-my-ip/trunk@955468 b8457f37-d9ea-0310-8a92-e5e31aec5664