This will allow any plugin to listen for a notification and respond accordingly.

-Brew Steps added
-Clean AddOn Dialog

Update __init__.py

- Method actor_power added to set the power without switching
- Method timer_remaining added to get the remaining time of a timer

Correct datatypes for def F automode to work

- Fix Autostart
- Add Splash Screen for Pixel

Add GPIO Pin 27

# Conflicts:
#	modules/core/controller.py

- Kettle Controller Fix
- Remove SQL Alchemie

Closes https://github.com/Manuel83/craftbeerpi3/issues/7

Fix exception in FermenterController