Allow trailing / in API Root URL

gracedb/urls_rest.py

@@ -9,7 +9,8 @@ from gracedb.api import Files, FileMeta
 from gracedb.api import EventNeighbors, EventLabel
 
 urlpatterns = patterns('gracedb.api',
-    url (r'^$', GracedbRoot.as_view(), name="api-root"),
+    url (r'^/?$', GracedbRoot.as_view(), name="api-root"),
+
 
     # Event Resources
     # events/[{graceid}[/{version}]]