Unicode support. The _() macro is made to imply _T() (would be boring to

type _(_T("text")), I think). That means you have to use wxGetString()
directly if you need to look up from a string variable instead of a literal.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2110 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775