Update README.md

Changed WindowController to execute its raise and lower tasks in a background thread. It was previously preventing any other actions from being executed while the windows were rolling up or down. Moving it to a background thread allows me to turn off the master switch in the event that the windows roll up too high and the motor is about to stall.

Added system controller for controlling power state from the UI

Added nudge buttons, reverted resource loading to use local classloader (system classloader wasn't finding files), and made the username check case-insensitive

Forgot to close streams to classloader resources.

Added MasterSwitch component. Since the Pi was powering on in an unknown pin state, I had to implement a master switch which would only supply 12V power to the hardware components once the greenhouse has been initialized. The master switch is in an OFF state on Pi boot and is then turned on once the greenhouse initializes.

Implemented DC motor control

Update README.md

Update README.md

Hooked up solenoid valves

Added GPIO controller class

Access control, web ui, listeners, and mocked up the hardware functions

Added Pi4J dependency

Fixing WAR issues

Updated project