Scheduled entries display publish date in dashboard

Since space if scare in the dashboard, scheduled entries will now
display their publish date instead of the 'Scheduled' badge. The
info that this is a scheduled entry will be available in a tooltip
of the pulish date. This seems like the best compromise on all
devices/resolutions.

References #260

templates/2k11/admin/overview.inc.tpl

@@ -93,7 +93,7 @@
 
                     </ul>
                 {if !$showFutureEntries && ($entry.timestamp >= $serverOffsetHour) && $entry.isdraft == "false"}
-                    <span class="entry_status status_future">{$CONST.SCHEDULED}</span>
+                    <span class="entry_status status_future" title="{$CONST.SCHEDULED}: {$CONST.ENTRY_PUBLISHED_FUTURE}">{$entry.timestamp|@formatTime:$CONST.DATE_FORMAT_SHORT}</span>
                 {/if}
                 {if $entry.ep_is_sticky}
                     <span class="entry_status status_sticky">{$CONST.STICKY_POSTINGS}</span>