Adding worker overview via navbar

Fixes #285

public/templates/mobile/account/workers/default.tpl

@@ -0,0 +1,17 @@
+    <table>
+      <tbody>
+      <tr>
+        <th align="left">Worker Name</th>
+        <th align="center">Active</th>
+        <th align="right">Khash/s</th>
+      </tr>
+      {section worker $WORKERS}
+      {assign var="username" value="."|escape|explode:$WORKERS[worker].username:2} 
+      <tr>
+        <td align="left"{if $WORKERS[worker].active} style="color: orange"{/if}>{$username.0|escape}.{$username.1|escape}</td>
+        <td align="center"><img src="{$PATH}/images/{if $WORKERS[worker].active}success{else}error{/if}.gif" /></td>
+        <td align="right">{$WORKERS[worker].hashrate|number_format}</td>
+      </tr>
+      {/section}
+      </tbody>
+    </table>

public/templates/mobile/global/navigation.tpl

@@ -6,6 +6,7 @@
           <ul>
             <li><a href="{$smarty.server.PHP_SELF}" data-icon="info" data-ajax="false">News</a></li>
             {if $smarty.session.AUTHENTICATED|default:"0" == 1}
+            <li><a href="{$smarty.server.PHP_SELF}?page=account&action=workers" data-icon="grid" data-ajax="false">Worker</a></li>
             <li><a href="{$smarty.server.PHP_SELF}?page=statistics&action=pool" data-icon="grid" data-ajax="false">Statistics</a></li>
             <li><a href="{$smarty.server.PHP_SELF}?page=logout" data-icon="gear" data-ajax="false">Logout</a></li>
             {else}