Add support to iOS 5 and lower
prepare examples for iOS5
add support for customize background color of alert view
update example
add support for customize background color of alert view
update example
Merge branch 'develop' of https://github.com/Sumi-Interactive/SIAlertView into develop
Merge branch 'develop' into ios5
fix windows hierarchy issue in iOS 5
update README
make sure customized alert shows below system's alert
update podspec