initial
the "everything appears to be working" stage
* temp sensor input
* relay output
* i2c working (see
http://learn.adafruit.com/adafruits-raspberry-pi-lesson-4-gpio-setup/configuring-i2c)
* active-low logic as required by relay board
* new break-out board that has new pin assignment
* no web interaction yet
adding web services + mgwt gui
files missing from prior commit
* small changes to the LCD screen dispaly
* adding timeout to GWT RPC
Merge branch 'master' of https://github.com/Hentschel/hottub