treemodel.cpp
2009-06-08 Images basically work (again)
2009-05-26 Various fixes and simplifications
2009-05-20 Fixed segfault when closing a map
2009-04-29 started to save data like positions outside of MapObj & Co
2009-04-27 minor fixes and cleanups
2009-04-27 relinking branches and removing branches works
2009-04-23 more data in Tree, less in Map
2009-04-20 minor fixes
2009-04-02 More moving from BranchObj to BranchItem
2009-03-26 Notes work again (to some degree)
2009-03-23 still working on insert/remove of rows
2009-03-06 Iteration over map works now (again)
2009-02-04 started to rewrite first(), next()
2008-10-29 subtrees can be deleted now
2008-10-06 Various fixes, also from 1.12. branch
2008-08-05 Preview: Added QTreeView to mainwindow (not yet functional)