Merge tag '1.7.4' into develop

* Fixed: Corrected erroneous SQL query when filtering users
* Fixed: User filters
  * Courtesy of [julmuell](https://github.com/julmuell)
  * #44
* Fixed: Show a user status in the filters only if at least one user has that status

new-user-approve.php

@@ -4,7 +4,7 @@
  Plugin URI: http://www.picklewagon.com/wordpress/new-user-approve/
  Description: Allow administrators to approve users once they register. Only approved users will be allowed to access the site. For support, please go to the <a href="http://wordpress.org/support/plugin/new-user-approve">support forums</a> on wordpress.org.
  Author: Josh Harrison
- Version: 1.7.3
+ Version: 1.7.4
  Author URI: http://picklewagon.com/
  */