Changes mainly to game- enabled keys to make noise
Merge branch 'master' of https://github.com/maciek93/musical-fingers

Conflicts:
Musical-fingers/assets/drum.png
Musical-fingers/assets/drum1.wav
Musical-fingers/assets/drum2.wav
Musical-fingers/assets/drum3.wav
Musical-fingers/assets/drum4.wav
Musical-fingers/assets/drum5.wav
Musical-fingers/src/ox/musicalfingers/display/GameScreen.java
Musical-fingers/src/ox/musicalfingers/instrument/DrumOutput.java
Musical-fingers/src/ox/musicalfingers/instrument/Random/FiveNotes.java
Musical-fingers/src/ox/musicalfingers/instrument/drum/Drum.java
deletions
stuff