added battwarn setting
update version
calibration: fixed accelcal for new module
calibration: fixed compassmot prompting
GPS fix level: support higher than 3
mavproxy_rc: rc command gracefully handles invalid pwmvalues
mavproxy_cmdlng added and cmd guided with lat/lon param upgraded
CMD_CONDITION_YAW added in mavproxy_cmdllong
Adding take off command long
Adding altitude management in takeoff cmd
cmdlong: rename speed and yaw to setspeed and setyaw
mode: fixed guided mode change for current module structure
release 1.3.6
rc: expose set_override for use by other modules

Rather than sending rc_override msgs straight from droneapi goo I'd
rather just share this code (so they don't develop disagreements about
desired rc state)
rally: Support for rally landings.
mavproxy: Defaults for rally_breakalt and rally_flags
map: Line drawing to assist with Rally Landing mission planning.
param: Rally pointis lines redrawn upon update of appropriate params.
rally: "rally land abort" now accepts an optional altitude argument