2004-12-11  Hans Breuer  <hans@breuer.org>

	* lib/widgets.c(dia_font_selector_set_font) : initialize
	the font style widget, too. Gets rid of empty font
	style and thus default broken font style, e.g. UML::class_name

	* lib/widgets.c(dia_color_selector_more_callback) : fill
	the color palette from dynamic menu entries and also
	preselect the current color to the last select entry

	* plug-ins/python/pydia-diagramdata.c : hold a reference
	to the underlying GObject

	* app/Makefile.am app/diagrid.h : new file containing the
	grid 'class' moved from DiagramData to Diagram.
	Also moved pagebreak_color and guides cause they are only
	used for visual appearance not 'data'.
	* lib/diagramdata.[ch] app/diagram.h app/dia-props.c app/grid.c
	  app/load_save.c plug-ins/python/pydia-diagramdata.c : reflect
	the above change

	* lib/diagramdata.[ch] app/app_procs.c app/diagram.c
	  lib/libdia.def : get rid of new_diagram_data()
	Diagram _is_ DiagramData (and does not have one any longer,
	just a compatibility pointer)

	* lib/diarenderer.h : a small doc improvement