Update README for recommended gcc-arm-embedded toolchain
[apogee] fix baro mpl3115 init on apogee
[sim] remove unused sim_baro
[modules] add baro_sim

as a temporary workaround to get baro simulation in ocaml sim
[conf] move some airframes to obsolete
[boards] sim pc: only USE_BARO_BOARD for nps
[baro] fix baro scaling for booz and navgo
[fix] fix typo in actuators asctec v2
[abi] split abi messages from telemetry messages

currently, the dtd is the same, but it can be changed in the future to
be more adapted to ABI messages
[sim] flight gear viz: daytime on all spots on the planet, not only France

closes #555
[abi] define ABI x_SENDER_IDs in abi_sender_ids.h

Same BARO_BOARD_SENDER_ID for all baro_board implementations.
Since there can only be one baro_board at the same time and
this provides a good default for INS_BARO_ID.

The abi_sender_ids.h can be considered a temporary solution,
we might come up with a different scheme later...
Merge pull request #371 from paparazzi/ahrs_int_cmpl_quat_correction_scaling

ahrs_int_cmpl_quat frequency scaling

Proper scaling of corrections.
Using AHRS_PROPAGATE_FREQUENCY, AHRS_CORRECT_FREQUENCY and AHRS_MAG_CORRECT_FREQUENCY.
Hence this will also give you correct gains for 100Hz fixedwings, see #240.

Allow tuning of the accel and mag correction natural freqency and damping.
Tunable gravity_heuristic_factor (set to zero to turn it off and replaces the boolean AHRS_GRAVITY_UPDATE_NORM_HEURISTIC)
If you have high vibrations, reduce this factor or completely turn it off...
Merge pull request #525 baro_abi

Baro event handling using ABI interface

Main benefits:

less crappy handler functions in main.c files
possibility to use multiple sources of sensors (integrated to the board or not)
the filters don't need to know who is sending the raw values (not completely true with the old alt_float filter yet)

the pressure are now standardized in Pascal and the standard atmosphere model is used

The INS_BARO_SENS is hence not needed anymore.
onboard baros are automatically available in fixedwing firmware as well (use same code as rotorcraft now)

disable onboard baro with <configure name="USE_BARO_BOARD" value="FALSE"/>
Some stuff to do before using: find the default conversion factor to convert ADC values to Pascal
(mostly older boards/baro, recent digital sensors can output pressure in Pascal already)

Also all baro_board implementations use the same BARO_BOARD_SENDER_ID,
since there can only be one baro_board at the same time and this provides a good default for INS_BARO_ID.
So if you want to use an onboard baro the INS_BARO_ID is already ok (also if you have additional baro modules).
To use a baro module for INS: <define name="INS_BARO_ID" value="BARO_x_SENDER_ID"/>

closes #525
Merge pull request #539 quat_transformations

Rotorcraft guidance fixes/improvements

So now horizontal guidance returns commands in north/east earth frame and doesn't already rotate it to body frame.
This allows for better handling of them in different controllers.

New and properly working transformations from earth commands to quaternions added.
No proper fixedpoint implementation so far... no change there compared to current master though.
Should still be done for efficiency.

Tested the int_quat stablizitation with this in simulation and it works perfectly as expected.

IMPORTANT: This does currently not have the feature to "add" roll/pitch setpoints via RC in nav/hover anymore.
Is that really used, instead of switching to manual if needed?
Instead you can give velocity commands in hover mode via RC.

Includes max bank improvements proposed in #546

Split PD and I-gain with separate max bank
no wind: integrator (trim attitude) = 0, PD maxbank = -20 to 20 extra: total: -20 to 20
huge wind: integrator (trim attitude) = 20, PD maxbank = -20 to 20 extra: total: 0 to 40
Put gain before integrator to get better insight in the saturation values
Reduce integration overshoots while increasing integration speed by adding the speed error as well
no speed error: integrate as before
counterproductive speed error, integrate faster
if the position error is already decreasing fast, no integrator is needed or it will overshoot

closes #539
Merge branch 'master' into telemetry

* master: (125 commits)
  [abi] define ABI x_SENDER_IDs in abi_sender_ids.h
  [sim] flight gear viz: daytime on all spots on the planet, not only France
  [abi] split abi messages from telemetry messages
  [fix] fix typo in actuators asctec v2
  [baro] fix baro scaling for booz and navgo
  [boards] sim pc: only USE_BARO_BOARD for nps
  [conf] move some airframes to obsolete
  [modules] add baro_sim
  [sim] remove unused sim_baro
  [apogee] fix baro mpl3115 init on apogee
  Update README for recommended gcc-arm-embedded toolchain
  [boards] stm32f4_discovery typo in description
  [boards] roughly correct BOOZ_BARO_SENS
  [modules] baro_ets: BARO_ETS_SCALE
  [modules] baro modules for real sensors only for ap target, not sim
  [conf] remove baro_board.xml module file
  [boards] update stm32f4_discovery
  [lib/ocaml] update leap_seconds
  [mission] fix segmentation fault and add generic mission FP
  [generator] generate arrays of the settings and fp blocks names
  ...

Conflicts:
	sw/airborne/firmwares/fixedwing/ap_downlink.h
	sw/airborne/firmwares/fixedwing/main_ap.c
	sw/airborne/firmwares/rotorcraft/telemetry.h
	sw/airborne/modules/sensors/baro_MS5534A.c
[telemetry] update HOVER_LOOP

remove unused cmd_body and nav_err
[conf] only error on unconfigured x_I2C_DEV if TARGET is ap
[telemetry] some updates for baro, ins, etc..

after merging master
[boards] fix missing brackets in baro_board_ms5611
[conf][stm32] separate file for upload rules