Feedback Fixes

Feedback
-Should only rumble/screen shake when taking damage instead of at any health change
-Should have variable rumble based upon damage taken
Feedback Fixes

Feedback
-Applied default rumble settings to rumble manager on camera
Moar Feedback Fixes
- Added a more robust implementation for the rumble manager.
- Made camera shake not cause the camera to stop following the player. This involved making a change to iTween itself, see http://answers.unity3d.com/questions/193100/itween-shakeposition-and-local-coordinates.html for more info.
Merge remote-tracking branch 'origin/master' into feedback_fixes

Conflicts:
        Assets/Scenes/Basic Boss.unity
Merge pull request #115 from ModSquadWorkshop/feedback_fixes

Feedback Fixes