Add default auth_uri setting for auth token.

The latest keystoneclient code now gives a Warning if auth_uri
isn't explicitly specified.

Change-Id: I0feb52f7a9140ea750254f80b6a3e6855b25f1d3
Remove non-implemented glance::scrubber

It can be added back once implemented.

Change-Id: I2de5d9b0b2117baf145d7b99de9684452bcb8e7d
Fail puppet-lint on warnings

Puppet-lint will now fail if there is any warnings.

Change-Id: I17bb6fa59af1c69d94f65616d41717c0297a8ad1