- Update to 0.5.7:
* Use Meson and Ninja to build translation files
* Improve Debian package compliance with standards
* Add translation strings for the code base
* Set a default directory to manually added games,
allowing to remove them
* Deprecate MESS runner
* Migrate all MESS games to MAME
* Get full supported system list from the XML given by MAME
* Allow to run MAME games by ID if the ROM path is set
* Add a no-GUI option to RPCS3
* Fix GalliumNine conflicts with DXVK
* Improve performance of DirectX 12 games running on AMD GPU by
setting RADV_DEBUG=zerovram
* Code style fixes. Pylint is now used in the Travis checks.