Delegate Improvements

[JamesKuang]

The delegates willDismissDCPathButtonItems: and didDismissDCPathButtonItems: are not fired unless you tap on the center button to dismiss. I would think they also get fired when tapping on one of the button items.

Currently there is no way to trigger an action after the dismiss animation, because pathButton:clickItemButtonAtIndex: happens on tap.

As an improvement, I suggest either:

1. All 3 of these delegates should fire in the right sequence.
2. Add a new delegate to fire after the dismiss animation for selecting an item button index.

[Tangdixi]

Fixed.
PLZ reinstall through PodSpec