New API in pangomm 1.46

Member Pango::ATTR_OVERLINE
Member Pango::ATTR_OVERLINE_COLOR
Member Pango::Font::get_face ()
Member Pango::Font::get_face () const
Member Pango::FontFace::get_family ()
Member Pango::FontFace::get_family () const
Member Pango::FontFamily::get_face (const Glib::ustring & name={})
Member Pango::FontFamily::get_face (const Glib::ustring & name={}) const
Member Pango::Overline