adapted previews, added to configuration

(cherry picked from commit c17e634e)

Conflicts:
	officecfg/registry/schema/org/openoffice/Office/Common.xcs
	svtools/inc/svtools/accessibilityoptions.hxx
	svtools/source/inc/configitems/accessibilityoptions_const.hxx
	vcl/inc/vcl/settings.hxx

Change-Id: I3f4fd9525e31cd816599b963ecd2fa42b1f666d7