moved around features/sensors setting stuff into config instead of drv_system
saving features to eeprom now to avoid stupid
added gcc crap for __nop and __dmb
added digital servo feature to pwm driver, used for tri or whatever
added just plain reboot option in addition to reboot to bootloader
git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@93 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61