* added option to add/edit/delete/hide/move forum boards

* now whole account management page is moved to Twig
* renamed table forum_sections to forum_boards
* fixed some rare error when user is logged in for longer than 15 minutes and tries to login again

system/templates/news.add.html.twig

@@ -96,7 +96,7 @@
 			<td>
 				<select name="forum_section">
 					<option value="-1">None</option>
-						{% for section in forum_sections %}
+						{% for section in forum_boards %}
 					<option value="{{ section.id }}" {% if forum_section is defined and forum_section == section.id %}checked="yes"{% endif %}/>{{ section.name }}</option>
 						{% endfor %}
 				</select>