string conversion. It's now able to not include hours.
	* panel-plugin/time-out.c: Add options to show/hide hours and
	  the time in general. Tooltip added to the event box. Small
	  icon is now visible in the panel. Time can be hidden now.
	  Properly handle size and orientation changes.
	* panel-plugin/time-out-lock-screen.c: Update to new seconds
	  to string conversion. 
 	* xfce4-time-out-plugin.pot: Merge new strings.
	* de.po: Update German translations.

(Old svn revision: 2718)