Details
Description
We have added support for PSR-4 (and PSR-0) in our auto loader so any PSR-4 compliant libraries in core can be autoloaded. However it makes sense to allow third party plugins to use this same code instead of having to include a PSR-4 autoloader (especially since we don't allow composer which would automatically include one when a PSR-4 library is added) See MDL-49672