Adds read_gps.py, a script to read from gpsserver and dumps lat lon info
Updates requirements.txt
Small fixes
Updates list of required modules.
Adds some fixes: waypoints can be set again, and rotation works again.
Make search for soundfile more robust (failed when dockserver-talk was
Compiles dirwatch C-code from setup.py script.
Lets buzzer.py find the proper path to where the sound file is