adding wp-pagseguro-payments by giovanebribeiro

git-svn-id: http://plugins.svn.wordpress.org/wp-pagseguro-payments/trunk@962645 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of github.com:giovanebribeiro/wp-pagseguro-payments