OpulenZ: new logo, some refactoring.
Merge https://github.com/LMMS/lmms into stable-0.4

Conflicts:
	plugins/opl2/logo.png
Added pitch bend
Merge https://github.com/LMMS/lmms into stable-0.4

Conflicts:
	plugins/opl2/opl2instrument.cpp
Merge https://github.com/LMMS/lmms into stable-0.4
OpulenZ: added velocity & aftertouch, cleaned up some unneeded code
Merge https://github.com/LMMS/lmms into stable-0.4
Merge https://github.com/LMMS/lmms into stable-0.4
OpulenZ: Velocity works OK now.
Merge pull request #154 from softrabbit/stable-0.4

OpulenZ improvements: pitch bend, velocity, aftertouch