Added UIView mids accesors
Calc the height of a UILabel based on the actual text, font and width
Removed NSArray -firstObject! 🎉

Since iOS 7 now this method is public.
Added block support to UIAlertView

I added (again) block support to UIAlertView. But now, with no
dependencies! Just the objc runtime.
Also, now I’m using and NSArray for the ‘other buttons’ so you can use
the new objc syntax -> @[@“”button 1] and forget about sentinels.
New method that asks te user before opening a phone number.