[conf] update some airframe examples to GUIDANCE_V_ADAPT changes
[cleaning] remove some f***ing names and comments
[rotorcraft] guidance_h: normalize psi sp from nav_heading
[conf][airframes] joystick axis as mode in nps
[rotorcraft] supress warning about uninitialized var
[math] prevent division by zero in INT32_QUAT_NORMALIZE
[rotorcraft] v_adapt: include generated airframe.h
Merge pull request #495 from flixr/v_adapt_limits

adaptive thrust estimation limits

- GUIDANCE_V_ADAPT_INITIAL_HOVER_THROTTLE settable in % with default of 0.3
- GUIDANCE_V_ADAPT_THROTTLE_ENABLED:
  TRUE by default if GUIDANCE_V_NOMINAL_HOVER_THROTTLE was not defined
  FALSE by default if only GUIDANCE_V_NOMINAL_HOVER_THROTTLE was set in airframe file (for backwards compatibility)
- switching between nominal_throttle and the adaptive estimate during operation via settings
whitespace cleanup and include guard fix
[rotorcraft] define AHRS_FLOAT for float_cmpl_rmat
[nps] datalink via ivy handling
[nps][conf] add needed sources/flags for imu/ahrs in fw nps
[nps] configurable jsbsim model and initial conditions from flight plan

If NPS_JSBSIM_MODEL is not defined, it defaults to the AIRCRAFT_NAME (previous behavior).
If NPS_JSBSIM_INIT is defined, that ic file is used, otherwise uses flight plan location.

NPS_INITIAL_CONDITITONS is not used anymore.
[conf][nps] replace INITIAL_CONDITITONS with JSBSIM_INIT in all airframes
[conf] ground alt for versatile flight plans
[nps] set ahrs in float
[fixedwing][nps] fix for ahrs and bypass
[conf] udev rules: add dfu devices to plugdev group
[ahrs] remove old ekf/lkf algos
[conf] error instead of warning on stabilization euler