Updated readme with more tags and information.

git-svn-id: https://plugins.svn.wordpress.org/jumplead/trunk@976385 b8457f37-d9ea-0310-8a92-e5e31aec5664
Tagged version 2.7

git-svn-id: https://plugins.svn.wordpress.org/jumplead/trunk@976388 b8457f37-d9ea-0310-8a92-e5e31aec5664