add useritems to HUD
change hdop scale
fix posible follow me bug (, vs .)
fix posible friendly params bug (, vs .)
tweak flightdata log playback timming
fix gridv2 bug. if no waypoint had been done, the grid wold fail
tweak some mission upload potential issues
add ability to get param list from a log (from startup)
add ability to get the first wp list in a log, if wps where received in that log.
tweak video capture library timing

this means pitch limits are constrained by LIM_PITCH_MIN and
LIM_PITCH_MAX

we where waiting on new_data that had no way of getting there.

number of seconds to delay telemetry

The current filter is outputting wild oscillations.

Arduplane:  increased MAVLINK delay to 6s to reduce the chance of xBee bricking
Ardurover:  increased MAVLINK delay to 6s to reduce the chance of xBee bricking

ArduCopter: increased Stabilize Roll and Pitch I term to 0.05 (was 0.01) based on feedback from Jason

* Previously had the ICR register for ch1/2/9 (on timer5) swapped with
  ch3/4/10 (on timer1).
* This bug probably didn't make a difference in operation since
  SetFastOutputChannels is typically only used for copters, where at
  least CH1,2,3,4 would be set to fast all at once.

this allows a user to setup the OBC failsafe system to forcibly crash
the plane (surfaces at limits, zero throttle) when the failsafe system
triggers. This is to allow APM to be used in the Outback Challenge. In
the OBC an external failsafe board also does this using the heartbeat
control pin, so this is an extra safety mechanism.

To prevent users accidentially triggering a crash, this code only
activates if FS_TERM_ACTION is set to to the magic value 42.

this allows you to select different altitude control algorithms. The
current choices are for the default (automatic based on if airspeed is
available), or to force a non-airspeed algorithm

The idea is to make it possible to use airspeed for some things (like
wind speed, speed scaling) but not for alt control

off by one error!

this prevents us resetting key integrators on waypoint change, while
still preventing old integrators being used when a PID starts to be
used again

SIM_WIND_* options now control wind

this removes the throttle suppression when any of the conditions are
met once, as otherwise flying slow below 10m could zero the throttle.

It also removes the use of airspeed for disabling throttle
supression. Otherwise a strong gust of wind can cause ArduPlane to
try to takeoff!

this allows for airspeed calibration on startup

ArduCopter: increase SPI bus speed to 2Mhz after IMU initialisation has completed (MPU6000 accepts maximum of 1Mhz for some registers but up to 20Mhz for main sensor and interrupt registers)

AP_InertialSensor_MPU6000: bug fix.  DMP was being enabled by default so although the results were not being used, this caused a delay in the main loop

This reverts commit 25d14a9d6a4a1ea60eb78485296298c98c1595d0.

pitch 80 may not be reached due to granularity of the MAVLink logging

Added fine-granular features in the AP_Mount class to reduce code size on 1280 chips
Remove camera trigger support on 1280 chips

add est distance traveled
add est flight time
AP_Mount now updated
add expermental firmware options.
fix hud avi record framerate
add 2 direction wp circle
tweak gridv2

RATE_ROLL_P, RATE_PITCH_P reduced to 0.165 (was 0.185)
RATE_ROLL_D, RATE_PITCH_D reduced to 0.004 (was 0.008)