Release 0.20.2

• v0.20.2
  • Master Release - October 18, 2017
  • Fixed Carthage build for the new version of Carthage.
  • Added the BNC_API_PINNED flag to disable cert pinning. Not recommended.
  • Added pragmas to silence availability warnings (GH #733, #735).
  • Share sheet fixes:
    • Allow UIBarButtonItem or UIView as share presentation anchor (AIS-360 AIS-376).
    • When a share sheet is cancelled, it now correctly doesn't report as completed (AIS-395, GH-#736).
  • Bug fix for automatic deeplinking controller:
    • To support old and new API for automatic deeplinking Controller, there are two types of value
      existed in deepLinkControllers dictionary: BNCDeepLinkViewControllerInstance and UIViewController.
      The variable branchSharingController.deepLinkingCompletionDelegate = self was set before
      checking type of the deepLinkControllers' value.