Add hard-coded cert name to setup.pp

The setup.pp code should never require a special certname,
and should never pull in role based scenario
configuration.

This commit adds a hard-coded certname
to setup.pp so that it will not pull
in the role specific code based on it's
hostname.
Merge pull request #201 from bodepd/hard_code_cert

Add hard-coded cert name to setup.pp