New feature added from a patch submitted on sourceforge by botg:
moving of tree items.
Bugs fixed:
- ChecklistBox content editing;
- Window styles more in sync with the docs;
- Replacing items;
- Reference property page created correctly (every property is
optional).
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44381 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775