Fixed #15604 -- Changed django.db.models.permalink to use wraps() so that it doesn't eat the docstring. Thanks for the report, sfllaw. Also added tests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15798 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/model_permalink/urls.py

@@ -0,0 +1,5 @@
+from django.conf.urls.defaults import *
+
+urlpatterns = patterns('',
+    url(r'^guitarists/(\w{1,50})/$', 'unimplemented_view_placeholder', name='guitarist_detail'),
+)