2003-10-01  Sven Neumann  <sven@gimp.org>

	* app/core/Makefile.am
	* app/core/gimpimage-unit.[ch]: added small wrappers to ease
	handling of image units and to hide the core GimpUnit API.

	* app/display/gimpdisplayshell-scale.c
	* app/display/gimpdisplayshell-title.c
	* app/display/gimpstatusbar.c
	* app/gui/info-window.c:
	* app/tools/gimpmeasuretool.c
	* app/tools/gimppainttool.c
	* app/tools/gimprectselecttool.c
	* app/tools/gimpscaletool.c: use the new functions.

	* app/core/gimp-units.c
	* app/vectors/gimpvectors-export.c: use the core GimpUnit API.

	* app/vectors/gimpvectors.c: no need to include gimpunit.h here.