Add-ons Standard Library by Xon 1.21.11

• Fix "Class XFES\Listener not found" from some of my add-on installers

• Fix ajax pagination & ajax filtered pagination code did not dynamically loading css/js
• Update choices.js
  • Various performance fixes when used with large number of options (ie hundreds of prefixes when using Multi-Prefix)
  • Fix filtering/search could return unstable search results
  • Fix possible empty ar-liaabel generation on remove item button
  • Fix enter could cause accidental form submit instead of open/closing the choices list in all cases

• Fix \SV\StandardLib\Helper::repo()->aliasClass() had a compatibility issue with XF2.2.13+ when the aliased class was the top-most class extension.