2007/12/07 18:51:47 mst 1.8.82.1: refactoring to use XDocumentProperties instead of XDocumentInfo
on document export:
- xmloff/inc/xmloff/xmlexp.hxx, xmloff/source/core/xmlexp.cxx:
  + turn lcl_GetProductName into static method SvXMLExport::GetProductName
  + updating of Generator string is now done in _ExportMeta
- xmloff/inc/MetaExportComponent.hxx, source/meta/MetaExportComponent.cxx:
  + use XDocumentProperties instead of XDocumentInfo
  + override _ExportMeta
- xmloff/inc/xmloff/xmlmetae.hxx, source/meta/xmlmetae.cxx:
  + new class SvXMLMetaExport, to eventually replace SfxXMLMetaExport
  + move lcl_GetProductName to xmlexp.cxx