Initial work to display additional buttons
Implemented multiple buttons with two types of actions - either via a
selector or a closure
Visual Tweaks

Set the alert text to be a text view so that it can display more than 5
lines of text (you have to scroll), Set the example project to be
universal so that you can test on iPad too, Fixed alert display so that
it works on all screen resolutions, Added the ability to specify the
default button title from the convenience methods, Set the button
titles to be bolded
Merge pull request #17 from FahimF/refactor2

Visual Tweaks