2.0:
* support non-ascii paths on Windows (SidTune, SidDatabase, STIL)
* wrap internal classes into a library namespace (WIP)
* support 3rd SID (Done)

3.0
* move mixer client side
* keep event scheduler internal
* wrap everything into a library namespace (?)


someday/maybe:

* relocate only psid tunes (?)
* add SIDid support
* implement support for mus data embedded in psid files
* test hardsid support
* raise an error on HLT instructions execution
