* Update blender tag addon for blender 2.8.
* Update blender md2 addon for blender 2.8.
* [Blender MD2 addon] Apply improvements from egoboo.
* [Blender MD2 addon] Reduce code duplication.
* Add tutorials.ufo.
* Update mailclient.ufo.
* Typo.
* Update modeltest.ufo.