flyingf3: fixed rx/tx pins for usart2 in uart mode
autotune: fixed check for module being builtin
battery: fixed check for module being builtin
sanitycheck: removed some wrong comments
flyingf3 pinout: fixed three typos
Fixed copy-pasta bug in Makefile.
Merge pull request #305 from lilvinz/module_builtin_fixes

Module builtin fixes
I2CVM: Does not need to be periodically sent to FC
Merge pull request #306 from TauLabs/makefile_fixes

Fixed copy-pasta bug in Makefile.
Ground vehicle should make the motor a motor

Previously the default configuration of a car let the motor
run while disarmed.  This is dangerous and counterintuitive
to the rest of the GCS.  Now motors are configured as motor
types (duh).

Fixes #295
Merge pull request #304 from lilvinz/flyingf3_pin_fixes

Flyingf3 pin fixes