Final part of bricklets.py testing

- all timers and variables were tested with timeouts
- Ambient Light, Barometer and Humidity bricklets were tested with REAL bricklets
- All other bricklets need further testing with REAL bricklets!
- Some bricklets dont have any data to log or complicated data -> needs more investigation!
- See bricklet_tests.txt for further details
Merge branch 'master' of https://github.com/D4wN/brickv