Added 3D style option with top highlight and bottom shadow on the bubble. New has3DStyle BOOL property.
moved border drawing to happen after 3D effect. Fixed aliasing issue with 3D effect, visible when borderWidth = 0.
Made 3D highlight and shadow colors compatible with ARC. Previously the UIColor was getting before the CGColorRef was assigned to fill and shadow.
Merge branch 'add3DStyle' of github.com:martinjbaker/CMPopTipView into martinjbaker-add3DStyle
Fixed 3D style fill spilling into background.