* Changed: Filter for access now attached on AJAX requests also
* Changed: Notices priority set to 8.
* Fixed: Fix for PHP 5.6 error "unexpected '::' (T_PAAMAYIM_NEKUDOTAYIM)".
* Added: LearnDash integration
* Added: XHR comaptibility & backwards compatibility
* Fixed: Higher priority for single Download's rules than global rules.
* Fixed: Custom tables not being deleted on uninstall