Move UIWebViewDelegate to interface.

Moving the UIWebViewDelegate to the interface allows subclasses to intercept delegate calls for the UIWebView and still call super for default implementation.

Signed-off-by: Thomas Conner <thomas.conner@connertechnologies.com>
Added method declaration.

Signed-off-by: Thomas Conner <thomas.conner@connertechnologies.com>
Merge pull request #8 from ThomasConner/master

Moves UIWebViewDelegate to public interface.