* Get rid of the non-functional GT2 loader
* Add the UMX loader
* Add HQ mixer routines (and make it configurable)
* Allow samplerate to be configured at run/playtime
* Support >64KHz mixing/playback
* Correctly restore non-boost status
(The diff to upstream is much smaller now too!)
Change-Id: Iaa4ac901ba9cd4123bb225656976e78271353a72
Stick to the safer version of those two.
Tested mikmod still works with some nice Necros .s3m files.
Change-Id: I6774cdf3345a4c89b2f9cf3bb8d832963ca30c38
