gpio_led: bugs fixed, PX4FMUv2 support added
sdlog2: getopt invalid usage fixed
sensors: publish manual controls on actuator_controls_1 topic instead of actuator_controls_3
px4io: print all control groups in "px4io status"
Reverse: sensors: publish manual controls on actuator_controls_1 topic instead of actuator_controls_3
px4iofirmware: define 4 actuator control groups
px4io: hardcode number of control groups in "px4io status"
px4io: print actuator control registers as int16 instead of uint16
Merge branch 'master' into act_group_hotfix
sdlog2: use orb_check() instead of poll() to minimize polling overhead, bugs and compiler warnings fixed
sdlog2: code style fixed
Merge branch 'master' into sdlog2_opt
sdlog2: move some global variables to local scope, set default log rate to 50 Hz
sdlog2: lseek() workaround removed
sdlog2: bug fixed, sleep when idle too
sdlog2: max write chunk increased to 1024
Revert "sdlog2: max write chunk increased to 1024"

This reverts commit a478dac621301a993fb8ed13b86abd61d93bfec0.
dumpfile command and fetch_log.py tool implemented to fetch logs via nsh console on USB
Fix code style of mb12xx driver, no functional changes
Merge branch 'getopt_fixes' into sdlog2_opt