Style guideline fixes

for my use case, I am not able to validate the
ssl endpoint b/c I am creating my puppet certificates
during my puppet run, so they are not available to
the http get request.

This patch adds a new resource parameter to
the puppetdb_conn_validator that allows it
to make a non-ssl connection. This allows me
to declare my own http only resource that I
can use to verify the puppetdb connection.

Allow puppetdb conn validation when ssl is disabled

Downcase has been added to puppetlabs/puppetdb, this patch changes the
dependency for stdlib to >= 2.2.0 as that was when downcase was first
included.

Signed-off-by: Ken Barber <ken@bob.sh>

Fix dependency for stdlib for 'downcase'

Minor tweaks to make the module support SUSE