switched nop to __NOP from cm3 headers
got rid of __GNUC__ DMB stuff as well, since its all properly defined in cm3 headers
added mpu lowpass filter config and defaulted to 42hz. seems to fly smoother.
features are in eeprom, removed default setting from main.c
git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@98 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61
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
