Added Javadocs, cleaned up code.
Fixed all javadoc errors and all warnings except @throw descriptions.
Merge branch 'sam/dev', fixed all javadoc errors

Conflicts:
	src/main/java/edu/gatech/gem5/game/controllers/EncounterController.java
Added shipyard button @ planet.fxml
Initial Menu Bar Commit @ RootMenuLayoutController.java &
RootMenuLayout.fxml
Merge remote-tracking branch 'origin/master' into james/dev
Fixed bug with the number 20 on character create screen