tests
Add UIAlertController factory
Add example
Documentation
support both devices, specify from command line
update example
backwards compatibility check
rename button_titles to button_keys
added support for button: { key: title }, where key gets passed to the block
2.3.0 adds UIAlertController helpers! thanks bmichotte
added factory methods for UIBlurEffect
some fixes to specs, and finally got around to removing 'UIColor#inspect', which i never should have written