Backend for openstack.org members report

Implemented backend

Change-Id: I5c2fbb51eeed3a70f22fa7bde2e77b492e2060a3

stackalytics/processor/config.py

@@ -28,6 +28,8 @@ OPTS = [
                help='The address dashboard listens on'),
     cfg.IntOpt('listen-port', default=8080,
                help='The port dashboard listens on'),
+    cfg.IntOpt('days_to_update_members', default=7,
+               help='Number of days to update members'),
     cfg.StrOpt('corrections-uri',
                default=('https://raw.github.com/stackforge/stackalytics/'
                         'master/etc/corrections.json'),