Rage is now a subclass of Timed Effects, and fixed small error

The small error appears (but never did anything but annoy me) when using
an auto-aimed spell when no enemies exist.
Rage = subclass of Status Effects; Fixed superficial error
2nd half of previous commit
Merge branch 'master' of https://github.com/John5025/Rougue

Conflicts:
	Assets/Resources/Rage.prefab.meta
	Assets/Scenes/Game.unity
Merge branch 'master' of https://github.com/John5025/Rougue

Conflicts:
	Assets/Scenes/Game.unity