Change display of dates in pings and stats tabs.

This is a temporary measure until I cannot go on without using any of
the node.js date modules. JavaScript Date object is really not that good
at formatting.

app/dashboard/views/_pings.ejs

@@ -21,7 +21,7 @@
 </div>
 <script id="ping_template" type="text/template">
 <tr class="{{= !ping.isUp ? 'red' : !ping.isResponsive ? 'orange' : '' }}">
-  <td>{{= new Date(ping.timestamp).toLocaleString() }}</td>
+  <td>{{= new Date(ping.timestamp).toLocaleDateString() }}, {{= new Date(ping.timestamp).toLocaleTimeString() }}</td>
   <td>
     <span class="label {{= (ping.isUp ? 'label-success' : 'label-important') }}">{{= (ping.isUp ? 'Up' : 'Down') }}</span>
     {{ if (ping.isUp && !ping.isResponsive) { }}<span class="label label-warning">Slow</span>{{ } }}

app/dashboard/views/_stats.ejs

@@ -42,7 +42,7 @@
 </div>
 <script id="stat_template" type="text/template">
 <tr class="{{= (stat.uptime < 100) ? 'red' : (stat.responsiveness < 100) ? 'orange' : '' }}">
-  <td>{{= new Date(stat.timestamp).toLocaleString() }}</td>
+  <td>{{= new Date(stat.timestamp).toLocaleDateString() }}, {{= new Date(stat.timestamp).toLocaleTimeString() }}</td>
   <td>{{= String(stat.uptime).replace('.000', '') }}%</td>
   <td>{{= String(stat.responsiveness).replace('.000', '') }}%</td>
   <td>{{= stat.downtime }}s</td>