* gimp/app/paint/gimpbrushcore.c
	* gimp/app/paint/gimpbrushcore.h
	* gimp/app/paint/gimpclone.c
	* gimp/app/paint/gimppaintbrush.c
	* gimp/app/paint/gimppaintoptions.c
	* gimp/app/paint/gimppaintoptions.h
	* gimp/app/tools/gimppaintoptions-gui.c: Apply patch from
	Adrian Likins to add "jitter" to paint tools (bug #163049),
	with small fixes for coding style and default jitter set
	to 0.2 instead of 0.0.