Merge pull request aschuch#42 from gunterhager/xcode-8-2-support

Fixed project settings to build with Xcode 8.2

prepare podspec for 3.0

update podspec for 2.0

Merge pull request aschuch#27 from philippeauriach/setupInitialViewSt…

…ate-completion

Added completion handler to setupInitialViewState

Merge pull request aschuch#16 from yonaskolb/tvOS_support

tvOS Support for podspec

update podspec

add note about swift 1.2 support

update README