* macros.h now has TO_UTF8() and FROM_UTF8() which are working converters
to and from UTF-8 encoding for any wxWidgets build mode. We can switch to
them at any time. I am using them now for specctra conversions and
elsewhere where I wanted gauranteed UTF8 encoding.
* added OUTPUTFORMATTER::Quoted( const wxString& ) to simplify converting
to UTF8 encoded s-expression atoms. The recommended technique is now simply:
out->Quoted( wxString ).c_str()