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="../">Home</a> › Documentation</div>{% endblock %}
{% block title %}Documentation{% endblock %}
{% block content %}
<h1>Documentation</h1>
<div id="content-main">
<h3><a href="tags/">Tags</a></h3>
<p>List of all the template tags and their functions.</p>
<h3><a href="filters/">Filters</a></h3>
<p>Filters are actions which can be applied to variables in a template to alter the output.</p>
<h3><a href="models/">Models</a></h3>
<p>Models are descriptions of all the objects in the system and their associated fields. Each model has a list of fields which can be accessed as template variables.</p>
<h3><a href="views/">Views</a></h3>
<p>Each page on the public site is generated by a view. The view defines which template is used to generate the page and which objects are available to that template.</p>
<h3><a href="bookmarklets/">Bookmarklets</a></h3>
<p>Tools for your browser to quickly access admin functionality.</p>
</div>
{% endblock %}