Insecure check if keystone is up

If we start keystone with an SSL endpoint then the curl check to see if
it is running will fail because it cannot create a secure connection.
This check can be done insecurely as all we care about is that the
service has started.

Change-Id: I826753d4d46e9956f443110029346bc70282951a
Merge "Insecure check if keystone is up"