[tools] move generators into subdir
[peripherals] fix dox for l3gd20
start bringing changelog up-to-date
[include] message_pragmas.h
[ins] add warning if obsolete INS_BARO_SENS is defined
[baro] print information about which baro_board sensor is used
[messages] fix order in HFF_DBG
[rotorcraft] configurable AUTOPILOT_IN_FLIGHT_TIME
[rotorcraft] update dox for AUTOPILOT_IN_FLIGHT_MIN_THRUST
[conf] ins_float_invariant: simpler AHRS_*_FREQUENCY defaults
fix typos in CHANGELOG
[airborne] some minor style fixes
[fixedwing] rename LOW_BATTERY_KILL_DELAY to CATASTROPHIC_BAT_KILL_DELAY
[tmtc] gpsd2ivy: commandline options and verbose mode

- fix nan checks and warnings
- default to broadcast instead of multicast on linux
- make ivy_bus, gpsd server and port configurable via commandline
- added verbose mode which should help to track down issue #658
[mcu_periph] sys_time: get_sys_time_msec and cleanup
[omap] Fix GPIO warnings
[vff] Disable debugging by default
[ardrone2] Fix AHRS propagate frequency
[ins] INS_PROPAGATE_FREQUENCY defaults to AHRS_PROPAGATE_FREQUENCY if defined
[conf] cleanup INS_ and AHRS_PROPAGATE_FREQUENCY