Increased coverage of Item and Hero classes.
Updated EnemyTest class.
Merge remote-tracking branch 'jreale4/master'

Conflicts:
	RPGModelClassesTest/junit/com/jreale4/RPG/shared/EnemyTest.java
Updated move class to extend coverage (removed null return value).
Merge remote-tracking branch 'Ryan_Hammett/master'

Conflicts:
	RPGModelClasses/src/com/jreale4/RPG/shared/ItemType.java
	RPGModelClassesTest/junit/com/jreale4/RPG/shared/EnemyTest.java