Cleaned up compiler warnings for MonoCross.Touch

Updated API calls and removed the compiler warnings which have cropped
up with newer iOS SDKs.
Code cleanup for MonoCross.Touch - Removed Console.WriteLines

Replaced Console.WriteLine calls with Debug.WriteLine.  Removed an
override which did nothing but print out a statement to the console.
Removed an additional compiler warning against a legacy API call.
Added check to verify the view is not null.

And removed unused delegate from MonoCross.Webkit
Refreshed the MonoCross.Touch csproj file to use latest Visual Studio/Xamarin Studio formatting.