fw att control: change control surface deflection scaling
Publish telemetry status on telemetry update and on heartbeat update events to avoid inducing heartbeat update latencies resulting in spurious telemetry link dropped detections. Makes overall state handling simpler
Make some space on FMUv1
Require a digit ahead of the dot for a valid number for the SF0x output
Merge pull request #1284 from PX4/telem_status_reactive

Publish telemetry status on telemetry update and on heartbeat update eve...
Airspeed fix attempt
mavlink: Handle command int packets
Mag scale check: only test if the scale roughly makes sense, do not judge the environment
Time out after a reasonable interval (10 seconds, as e.g. OBC rules prescribe). Experiments show the SiK radios to time out ~4-7 seconds if they loose sync
Do not perform retries in airspeed driver - this is too much load for the HRT queue
Merge branch 'master' of github.com:PX4/Firmware into as_fix
Merge pull request #1292 from PX4/as_fix

Airspeed fix attempt
Merge pull request #1293 from PX4/timeout_fix

Timeout fix
Merge pull request #1277 from PX4/fwattvscale

fw att control: change control surface deflection scaling
Merge pull request #1290 from PX4/sf_fix

Require a digit ahead of the dot for a valid number for the SF0x output
Merge pull request #1291 from PX4/mavlink_cmdint

mavlink: Handle command int packets
Reset excitement mode for hmc5883 sensor before applying a new one to avoid getting reserved 11 bits set in case of a set_excitement(1) call following a set_excitement(-1) call.
Merge pull request #1295 from muharred/master

HMC5883 set_excitement minor fix.
Merge pull request #1283 from PX4/qnh

add param for qnh
skeleton for adafruiti2cpwm driver