Cleaner Countdown widget UI

Summary: Adds the launch date, normalize spacing a bit.

Test Plan:
Test a normal and embeded countdowns.

{F670199}

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D13740

resources/celerity/map.php

@@ -54,7 +54,7 @@ return array(
     'rsrc/css/application/conpherence/update.css' => 'faf6be09',
     'rsrc/css/application/conpherence/widget-pane.css' => '419fd50c',
     'rsrc/css/application/contentsource/content-source-view.css' => '4b8b05d4',
-    'rsrc/css/application/countdown/timer.css' => '3791bb38',
+    'rsrc/css/application/countdown/timer.css' => '3d1355ec',
     'rsrc/css/application/daemon/bulk-job.css' => 'df9c1d4a',
     'rsrc/css/application/dashboard/dashboard.css' => 'eb458607',
     'rsrc/css/application/diff/inline-comment-summary.css' => '51efda3a',
@@ -722,7 +722,7 @@ return array(
     'phabricator-chatlog-css' => 'd295b020',
     'phabricator-content-source-view-css' => '4b8b05d4',
     'phabricator-core-css' => 'a76cefc9',
-    'phabricator-countdown-css' => '3791bb38',
+    'phabricator-countdown-css' => '3d1355ec',
     'phabricator-dashboard-css' => 'eb458607',
     'phabricator-drag-and-drop-file-upload' => '07de8873',
     'phabricator-draggable-list' => 'a16ec1c6',