TFA protocol (weather protocol) added (not functional yet)
Merge remote-tracking branch 'yves911/master'
add src/protocols/tfa.coffee
model 'TFA' added
TFA protocol added to src/controller.coffee
TFA values are now calculated
Merge remote-tracking branch 'yves911/master'

Conflicts:
	src/controller.coffee
respect max line length
Optimize a bit how temperature is calculated
Added explanations about the TFA protocol
New protocol for PIR sensor
Merge remote-tracking branch 'yves911/master'

Conflicts:
	lib/protocols/tfa.js
	src/protocols/tfa.coffee
enable debug in test