Exporting NavigationWidget

[David Nolden]

You mean ExpandingWidgetModel, not NavigationWidget. But I don't plan to do it 
anytime soon, since I'm currently not sure whether it's really solved in the 
right way, it might need a review and a bit of refactoring(Alone the fact 
that it's all based in QTreeView although it actually just is a list, seems 
suboptimal). So it should stay as it is now, and then at some point when 
everything has calmed down a bit and when there isn't that many much more 
important tasks around, I will take a look at it.

I've read the thread, and copying wouldn't be all that horrible, but as long 
as I'm the only one working on it, that would be the real hack compared to 
the logical svn:externals. When we switch to git, the "expandinwidgetmodel" 
directory could just be made a sub-module and shared by both sides, so it 
would technically work there too.

Greetings, David