works for the generic implementation only).
Renamed wxDIRCTRL_EDITABLE to wxDIRCTRL_EDIT_LABELS.
Removed reported memory leaks from dynload.cpp using wxModule --
this may cause problems if other modules want to use wxPluginLibrary.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15074 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775