AC Fix BATT_CURR_PIN number
Rover: added SERIAL0_BAUD parameter
AP_InertialSensor: update PX4 driver to use read() method
HAL_PX4: fixed thread_running on failed startup
build: added configure_px4fmu to clean target
Copter: fixed test code warnings
Plane: run PX4 console at 57600
Plane: fixed test baro printout
AP_Baro: added accumulate method to PX4 driver, and fixed scaling
Arducopter: Backing out my changes for a new Loiter Repositioning mode.  Leonard and Jonathan's work will trump this.
AP_Mission: Command and waypoint handling library.

- Reads and writes MAVLINK commands to/from storage.
- Contains a waypoint queue of previous, current, and after waypoints.
- Provides commands associated with current mission leg.
- Allows incrementing waypoints and changing to specific waypoints at anytime.
- Handles DO_JUMP commands while maintaining a valid waypoint queue.
- Performs error checking on waypoint values.
AP_Mission: Removed cliSerial and uncrustified files
AP_Mission: Addition of command_index() function, that just returns the current index (_index[1])