Ably iOS Objective-C & Swift release 1.1.0

Client library release:

https://github.com/ably/ably-ios/releases/tag/1.1.0

Important changes include:

  • Upgrade to Xcode 9.4 #721
  • Update Swift to version 4.1 #716
  • Update protocol version to 1.1 #777
  • Update push API and push device authentication #761
  • Add max message size #759