Copter: completely disable vel controller
Copter: remove DO_MOUNT_CONFIGURE support

The functions in the mount lib didn't work anyway
Mount: remove CMD_DO_MOUNT_CONFIGURE support
Copter: remove debug
Copter: shorten ESC calibration message
Relay: reduce num relays to 2
RangeFinder: reduce num instances to 1
Copter: ReleaseNotes for AC3.2-rc13
Copter: version to AC3.2-rc13
AP_RangeFinder: auto-update PX4 ll40ls max/min distance

this allows the range of the Lidar to be set by the user using
RNGFND_MAX_CM and RNGFND_MIN_CM
RangeFinder: PulsedLight I2C addr to 0x62
Copter: fix to dcm-check to be continuous

dcm-check was triggering after 10 bad headings but these did not need to
be continuous meaning if the vehicle was flown long enough it would
almost certainly trigger a dcm-check failure and land