adding dashboard-posts-stats by felipelavinz

git-svn-id: http://plugins.svn.wordpress.org/dashboard-posts-stats/trunk@655085 b8457f37-d9ea-0310-8a92-e5e31aec5664
add to wordpress plugin repository

Merge github.com:felipelavinz/wordpress-dashboard-post-stats

git-svn-id: http://plugins.svn.wordpress.org/dashboard-posts-stats/trunk@656393 b8457f37-d9ea-0310-8a92-e5e31aec5664