AWS SDK for iOS 2.6.29

Enhancements

• Amazon Polly

  • Added support for new voice Zhiyu.

• Amazon CognitoAuth

  • User completion code called after SFSafariViewController dismissed See pull#1000
  • Allow developer to decide if sign in screen should be shown again if the refresh token has expired. See pull#1007

Bug Fixes

• Amazon CognitoAuth
  • Added check to see if refreshToken is received from the server. If not, retrieve it from the keychain. See issue#1035