plug users and hosting packages together

- document new feature in changelog
- add autogenerated documentation for osusers.urls and osusers.views
- add osuser URLs to gnuviechadmin.urls
- implement get_absolute_url in hostingpackages.models.CustomerHostingPackage
- use set_ldap_user_password instead of create_ldap_user for existing OS users
  in osusers.models.User.set_password
- add URL pattern set_osuser_password in osusers.urls
- implement osusers.views.SetOsUserPassword to set the password of an existing
  operating system user
- link to hosting package detail view on user dashboard
- add template hostingpackages/customerhostingpackage_detail.html
- add template osusers/user_setpassword.html

gnuviechadmin/templates/osusers/user_setpassword.html

@@ -0,0 +1,30 @@
+{% extends "osusers/base.html" %}
+{% load i18n crispy_forms_tags %}
+{% block title %}{{ block.super }} - {% spaceless %}
+{% if customer == user %}
+  {% blocktrans with osuser=osuser.username %}Set new password for user {{ osuser }}{% endblocktrans %}
+{% else %}
+  {% blocktrans with osuser=osuser.username full_name=customer.get_full_name %}Set new password for user {{ osuser }} of customer {{ full_name }}{% endblocktrans %}
+{% endif %}
+{% endspaceless %}{% endblock title %}
+
+{% block page_title %}{% spaceless %}
+{% if customer == user %}
+  {% blocktrans with osuser=osuser.username %}Set new password for user {{ osuser }}{% endblocktrans %}
+{% else %}
+  {% blocktrans with osuser=osuser.username full_name=customer.get_full_name %}Set new password for user {{ osuser }} of customer {{ full_name }}{% endblocktrans %}
+{% endif %}
+{% endspaceless %}{% endblock page_title %}
+
+{% block content %}
+{% crispy form %}
+{% endblock content %}
+
+{% block extra_js %}
+<script type="text/javascript">
+$(document).ready(function() {
+  $('input[type=password]').val('');
+  $('input[type=password]').first().focus();
+});
+</script>
+{% endblock extra_js %}