- Sensors summary now shows you how man compasses you have
- Fix for APM accel cal. Can only use first accel offsets.

I removed some needed headers from a top level file which then causes a
ripple effect downstream

I know that some people belive that goto's are devil's work
but sometimes (like chaining if/elses for failures) it can
actually simplify the code for a better readability and
improved speed.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>