[app_server] update settings path
[tools] cleanup whitespaces
[tools] Added tcp_aircraft_server

re-broadcasts the ivy telemetry stream from a specified vehicle over tcp to
a specified remote ip. Committed on request and behalf of Antoine Drouin
(poine)
[Messages] Fixed caps etc for internal commonality as well as commonality
with messages_ng
[tools] tcp_aircraft_server: fix indentation, python3 compat
[tools] tcp_aircraft_server: read PAPARAZZI_HOME
[generators] make gen_autopilot a bit more robust
[conf] testing gen_autopilot stuff
[nav] change rotorcraft nav API to use points rather than wp id

closes #749
[rotorcraft] guidance_h: fix typo in y vgain
[subsystems] indentation only
[rotorcraft] add nav_set_heading_current
[rotorcraft] remove unused nav_course
[flight_plans] fix cube.xml
[boards] lisa_l: fix typo in PWM_SERVO_6
fix on nav_check_wp_time
[app_server] support tcp stream and don't read conf.xml directly
[ins] prevent drifting of the ins_invariant while waiting first gps data
[nav][gls] initialized target airspeed even if airspeed control is not used
[ardrone2] update script to configure the ardrone2

- network configuration script
- add autoboot install command
- add HOST variable to ardrone2 script's parameter
- fix typo for checking if vision is running