Fixed one typo in response_helpers which caused is_admin context variable not to work correctly. Created new checkLinkNameForId function that checks if link_name is correct when creating new user and modifying existing one. This is now used for validation instead of doesLinkNameBelongToId in UserForm clean_link_name function. The previous validation function didn't allow to create new users and modify linkname of existing ones. Additionally I created new doesLinkNameExist helper function.

{% extends "admin/base_site.html" %}
{% load i18n %}

{% block breadcrumbs %}<div class="breadcrumbs"><a href="../">{% trans 'Home' %}</a></div>{% endblock %}

{% block content %}

<p>{% trans "Thanks for spending some quality time with the Web site today." %}</p>

<p><a href="../">{% trans 'Log in again' %}</a></p>

{% endblock %}