Remove unused AppDelegate stock methods.
Remove preprocessor conditional ARC check directive from DrawingTools.
Minor reformatting.
Now remove ARC checks in DrawingTools.m.
Remove implied strong attributes from DrawingView.h.
Minor reformat.
Remove implied strong attributes in DrawingView.m.
Remove preprocessor conditional ARC checks from DrawingView.m.
Remove implied strong attributes in AppDelegate.h.
Minor reformat.
Clean up tool and color selection. Good ol' enums.