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/hostingpackages/models.py

@@ -5,6 +5,7 @@ This module contains the hosting package models.
 from __future__ import absolute_import, unicode_literals
 
 from django.conf import settings
+from django.core.urlresolvers import reverse
 from django.db import transaction
 from django.db import models
 from django.utils.encoding import python_2_unicode_compatible
@@ -218,6 +219,12 @@ class CustomerHostingPackage(HostingPackageBase):
             name=self.name, customer=self.customer
         )
 
+    def get_absolute_url(self):
+        return reverse('hosting_package_details', kwargs={
+            'user': self.customer.username,
+            'pk': self.id,
+        })
+
     def copy_template_attributes(self):
         """
         Copy the attributes of the hosting package's template to the package.