This was occuring if a title has no properties set initially, but then are configured later. The title image data would go from [NSNull null] to nil, breaking this check.
By comparing against both values, we can ensure the correct logic for all behaviors.
* Set to use old bridge for compatibility with 0.30+
* Fixed crash occurring when tabBarBackgroundColor or tabBarButtonColor is not supplied
* Adds setStyle property to index.js
* Adds native code for setting style on RCCViewController
* Fixes setStyle function
* Fixes setting style on navigator
* Adds some styling to tab bar controller and fixes some bugs
* Adds ability to set modal presentation style
* Makes sure autoAdjustScrollViewInsets isn't propagated through when push another view controller
* Changes import to reference controllers rather than react-native-controllers and fixes setStyle mutating colours
* Fixed to work with RN 33
* Fixes updating title font styling with new RCCTitleViewHelper logic
* Fixes subtitle being shown
* Adds extendedLayoutIncludesOpaqueBars to navigation styling
* Adds ability to add shadows to text in navigation bar / tab bar
* Fixed merged ReactGateway.java file
* Fixed issue with rightButtons getting ignored in preference for empty Screen buttons
* Fixes compiler error