ORB topic for drive testing requests
cmd line utility for controlling drive tests
Made some space for FDs - needs proper fix, but will give hackers some relief
Merge pull request #1403 from PX4/sdlog2_relief

Made some space for FDs - needs proper fix, but serves well as short-term solution
ll40ls: auto-detect ll40ls on either 0x42 or 0x62 I2C address
ll40ls: start a measurement after a probe

this ensures register 0 also works
px4flow: try a 22 byte transfer in probe()

this allows us to distinguish between a ll40ls and px4flow on I2C
address 0x42
Merge pull request #1406 from tridge/pullrequest-ll40ls-probe

Pullrequest ll40ls probe
Merge pull request #1407 from tridge/pullrequest-px4flow-probe

px4flow: try a 22 byte transfer in probe()
Flow driver: auto-format fixes
Merge pull request #1409 from PX4/flow_format

Flow driver: auto-format fixes
Add define to cull flash-intense mathlib tests
Autoformatting (reviewed) IO sbus handler. No functionality changes.
Update MAVLink submodule
Fix low stack space on commander - relevant in HIL
Abort on large packets which do not fit in buffer - not just if the gap is not provided any more.
drivers: allow forcing the safety switch on

This allows forcing the safety switch to the on position from software
which stops the pwm outputs
mpu6000: added logging of good transfers

this helps tracking down a startup issue
TECS: Fix bug (underspeed-condition did not have any effect on throttle)
Merge remote-tracking branch 'tridge/pullrequest-force-safety'