[rotorcraft] check_in_flight without RC

Closes #464
Changes to make ARDrone2 SDK fly without joystick
Still needs to be properly solved as per issue #201
[conf] update example sessions for ARDrone2

Removed Logitech Joystick because users are not going to have it and it will cause error messages when they launch it.
Adding notes in Wiki on how to add joystick yourself.
We now only need one session for ardrone2
[release] v5.0 stable version
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
Merge remote-tracking branch 'paparazzi/master'

Conflicts:
	conf/airframes/ardrone2_sdk.xml