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/gnuviechadmin/urls.py

@@ -11,6 +11,7 @@ urlpatterns = patterns(
     url(r'', include('dashboard.urls')),
     url(r'^accounts/', include('allauth.urls')),
     url(r'^hosting/', include('hostingpackages.urls')),
+    url(r'^osuser/', include('osusers.urls')),
     url(r'^admin/', include(admin.site.urls)),
 )