Misc. objects and widgets

Stock icons - icons to reuse
GnomeDbGrayBar - Nice looking gray bar widget
GnomeDbRefBase - Used to reference other objects
GnomeDbCustomLayout - Object to store the model part of custom layouts
GnomeDbGraphviz - Creates .dot files which can then be processed with GraphViz.
GnomeDbWrapperField - GnomeDbField interface implementation for the GnomeDbModelWrapper object