Saves Score to file. Highscore feature complete
Fixed a comment and highscores default text file
Fixed issue with highscore not saving correctl
Merge branch 'pr/26' into develop

Conflicts:
	bin/Galaga/Galaga$HighScore.class
	bin/Galaga/Galaga$Return.class
	bin/Galaga/Galaga.class
	src/Galaga/Galaga.java