Merge pull request #11 from evertharmeling/develop

Code updates
Merge pull request #13 from evertharmeling/develop

Added pump overrule functionality
Used BrewControlManager in Logic
Implemented the Observer pattern on Phases and the BatchManager
Completed Phase type for temperature control
Removed ignore on .lock
Merge pull request #12 from Huupke/develop

Implemented the Observer pattern in the Phases