2008-09-06 David De La Harpe Golden <david@harpegolden.net>

	* select.el: allow x-set-selection to take a function
		     that is called on-demand to obtain selection data.

	* simple.el: lazy implementation of select-active-regions.

	* mouse.el:  fix time-ordering of deactivate-mark operations
	  	     in mouse drag tracking.