Say 'mod' instead of '5' on users per trust level table

app/assets/javascripts/admin/templates/dashboard.js.handlebars

@@ -53,7 +53,7 @@
           <th>2</th>
           <th>3</th>
           <th>4</th>
-          <th>5</th>
+          <th>{{i18n admin.dashboard.moderator_short}}</th>
         </tr>
       </thead>
       {{#unless loading}}

app/assets/stylesheets/admin/admin_base.scss

@@ -360,6 +360,10 @@ table {
 
   &.trust-levels {
     margin-top: 0px;
+
+    td.value {
+      width: 33px;
+    }
   }
 }
 

config/locales/client.en.yml

@@ -692,6 +692,7 @@ en:
         latest_version: "Latest version"
         update_often: 'Please update often!'
         total_users: "Total Users"
+        moderator_short: "mod"
 
         reports:
           today: "Today"