the filename lookup and URL handling mechanisms with the soon to be created
gtk-xmhtml based alternative. Added wxLocale support to allow different translated help files to be used. Tested (no changes to application required) under Solaris.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1405 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
