WAY better tuba thanks to CSQC magic.

WAY better tuba thanks to CSQC magic.
Try exec input-tuba.cfg, then tuba_staccato, then play with MIDI keyboard. Now all I need is splitting up the tuba samples into start+loop- and end-files, and we can hold notes for any time we want :P but even now it's already way better, as you can hit notes at (almost) any speed you want. Still no polyphony yet, but CSQC side supports it :P

Also fix a warning in mathlib.

git-svn-id: svn://svn.icculus.org/nexuiz/trunk@8270 f962a42d-fe04-0410-a3ab-8c8b0445ebaa