[modules] baro ets start delay
[modules] airspeed ets start delay
Updated to newest locm3
Updated luftboot to get support for stdint types only.
Removed usage of the kernel style int types.
Merge pull request #466 from esden/locm3_stylefix_update

Locm3 stylefix update
[dox] doxygen file header fixes
[conf] add pcre lib to NPS

For some reason this needs to be explicitly specified for Ubuntu 13.04,
while it was working without it on 12.04.
[rotorcraft] add missing include so stabilization_attitude_euler_int can be used standalone
[rotorcraft] settings and rough example for float ahrs/stabilization
[ground_segment] add joystick hat to input2ivy

You can use the Hat<Position>(<hat_name>) function to trigger events,
where <Position> is one of
Centered/Up/Right/Down/Left/RightUp/RightDown/LeftUp/LeftDown

Only one hat can be used, but the interface will allow multiple ones in
the future.

closes #460
[nps] make radio_control type datalink work
[conf] update xbox and sidewinder joystick examples
[peripherals] mpu60x0_i2c: only copy ext data if i2c_bypass is false
[imu] fixes for imu_drotek_10dof_v2

- fix copying of unscaled gyro/accel data
- make i2c addresses of mpu and hmc configurable
- change orientation so z-axis is down when chips face up: define IMU_DROTEK_2_ORIENTATION_IC_UP
- silence some warnings
[fix] Yaw command was overwritten by trim.
[fix] logging wrong channels
[dfu] Small fix to finddevs timeout
[system] add apt preference file for lpc21isp package
additionals to use amsys sensors to measure airspeed