MasterTabBarController: Use @available instead of instancesRespondToSelector
MasterTabBarController: Use @available instead of instancesRespondToSelector

vector-im/riot-ios,vector-im/riot-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/vector-ios