Added translation of Role value, fixed bug with number of posts shown on Notify dropdown.

git-svn-id: https://plugins.svn.wordpress.org/email-users/trunk@778462 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added translation of Role value.

git-svn-id: https://plugins.svn.wordpress.org/email-users/trunk@778464 b8457f37-d9ea-0310-8a92-e5e31aec5664