2007-05-03 [wwp] 2.9.1cvs40

	* src/plugins/spamassassin/spamassassin.c
	* src/plugins/spamassassin/spamassassin.h
	* src/plugins/spamassassin/spamassassin_gtk.c
	* src/plugins/bogofilter/bogofilter.c
	* src/plugins/bogofilter/bogofilter.h
	* src/plugins/bogofilter/bogofilter_gtk.c
		Added an option to conditionally mark saved spam
		as read	(default is and was to do so).
		Satisfies feature request 1708539 on sf.net tracker.