[gi-overrides] let user set the proper property names in Gtk.Table
[gi-overrides] let user set the proper property names in Gtk.Table

* the old override added a columns and rows parameters to the Table constuctor
  to be in sync with PyGtk.
* The GTK properties are n_columns and n_rows
* support both

jdahlin/pygobject,alexef/pygobject,thiblahute/pygobject,nzjrs/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,nzjrs/pygobject,jdahlin/pygobject,GNOME/pygobject,alexef/pygobject,choeger/pygobject-cmake,sfeltman/pygobject,alexef/pygobject,pexip/pygobject,jdahlin/pygobject,pexip/pygobject,davibe/pygobject,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,GNOME/pygobject,davidmalcolm/pygobject,nzjrs/pygobject,choeger/pygobject-cmake,sfeltman/pygobject,sfeltman/pygobject,GNOME/pygobject,davibe/pygobject,davidmalcolm/pygobject,MathieuDuponchelle/pygobject,davibe/pygobject,davidmalcolm/pygobject,thiblahute/pygobject,davibe/pygobject,pexip/pygobject