Replace UITextAlignmentCenter deprecated in iOS 6 with NSTextAlignmentCenter.
Set iOS 7.0 to the deployment target of the demo project file.
Workaround a bug of iOS 8 by changing highlightedImage property of UIImageViews on SVSegmentedThumb to image property because an image previously set to the property is displayed in iOS 8 in case of highlightedImage property.
Fix parameter type to avoid compiler warnings.
Add podspec file.