Various changes

mobile-friendly ui updates
admin user-edit bugfix
file cleanup
added searchFields
add blog search
remove unused code
add maintenance mode config

app/views/install/verify.html

@@ -13,7 +13,7 @@
                 <li>mysql_pdo must be enabled</li>
             </ul>
             <div class="text-center">
-                <form action="" method="post" class="form-horizontal">
+                <form method="post">
                     <input type="hidden" name="token" value="{TOKEN}">
                     <button class="btn btn-lg btn-primary center-block" type="submit" name="submit" value="submit">Check</button><br>
                 </form>