Merge from vendor branch TNF:

Merge from vendor branch TNF:
Initial import of gnome-screensaver, version 2.14.0:

gnome-screensaver is a new screensaver that can replace xscreensaver.
It is designed to integrate well with the desktop and provide a control
interface that is desktop neutral.  It simplifies and streamlines the
experience for the user and provides more capability for the system
administrator and vendor.