LocalHost by default in Debug mode

Image resolutions are now requested as width x height
Readded logout button to the settings page

gallery/templates/settings/account.html

@@ -3,4 +3,5 @@
 {% block settings_account %}settings-nav__item-selected{% endblock %}
 {% block settings_content %}
     <h2>Account</h2>
+    <a href="{{ url_for( 'auth.logout' ) }}">Logout</a>
 {% endblock %}