Plane: fixed allocation and reporting of fence status

prevent a false fence active report on boot, and prevent the fence
from loading when it is not needed. This saves about 200 bytes of ram
on APM2 for most users
AP_NavEKF : adjust default values for accelerometer process noise

Slows down estimate and allows for smaller values to be set
AP_NavEKF : Fix bug in logging of airspeed innovation consistency ratio
AP_NavEKF : Tighten GPS velocity glitch gate default setting for plane
AP_NavEKF : Reduce Z accel bias process noise to provide a more stable estimate
AutoTest: fix to copter missions

Missions were not completing successfully because they were waiting for
the current waypoint number to be 1 higher than was possible
AutoTest: shorten copter mission

Replace 35 seconds delay with 5 second delay
Plane: fixed displayname for FENCE_AUTOENABLE
Plane: prepare for 3.0.0 release
Plane: spelling fixes
AutoTest: rename copter_spline to copter_spline_mission
AutoTest: rename ArduCopter to copter_params
AutoTest: rename CopterAVC to copter_AVC2013_params
AutoTest: rename AVC2013 to copter_AVC2013_mission
AutoTest: fix AVC copter test

Also incorporate file name changes
AP_HAL: New VRBRAIN board definition and libraries
mk: new make files for VRBRAIN
AP_Baro: new files for VRBRAIN board
AP_Common: new board ID for VRBRAIN
AP_Compass: new files and definition for VRBRAIN board