Update garagedoor.py
Update garagedoor.py

Currently have a problem that if the pi loses power, in it's last dying breath, it opens the garage door one last time.

Trying out a hack mentioned here to combat this:
http://www.instructables.com/id/Raspberry-Pi-Garage-Door-Opener/step6/Create-a-Startup-Service/
quinnjn/GarageDoor