The update was necessary because I had forgotten to add DTSidePanelController to any static library. Without that you could only compile it directly into your app, instead of being able to link in the lib and use it from there.
When I added it to the iOS Static Library and Static Framework targets I found out that I had already coded the delegate to use weak references. The general deployment target (minimum OS version) is still iOS 4.3 which did not support zeroing weak references.
So I also added zeroing weak references support in DTFoundation, via DTWeakSupport.h.
