Stas Sergeev:
1. CollapseDir() was forgetting to... hrmm, to collapse
the dir...
It was only removing the child elements, leaving the dir
expanded. Missing code added.
2. ReCreateTree(), which, according to the comments, must
collapse and re-open the tree, was not re-opening it.
Fixed.
3. For those who used the bogus ReCreateTree() behaviour
to collapse the tree, I added CollapseTree(). This does
visually what the ReCreateTree() wrongly did before the
patch.
4. Documentation is updated accordingly.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33223 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
c06dde42fe