Rewrote MSGEQ7 Algorithm. Removed stdlib.h dependency, thereby reducing
the flash needed by 50%. Interrupts no longer enabled in twislave, but
in main.

Audio Firmware now with Watchdog. Removed unused code. Fixed compiler
warnings. Fixed cube coordinate system problems. Fixed audio display
rotation. Nicer Idle Display with SAP Logo. Increased Firmware Version
Number. Debug Build even more talky.