Fixes #5467, #5494: Removes reliance on external RVM module and switches to single user install.

Removes the reliance on an external RVM module to allow installation as
the devel deployment user. Switches to using the 'vcsrepo' puppet module
to alleviate issues with switching directories when cloning. Lastly,
adds user creation and sets the user password to 'changeme' for all
devel deployments.
Adding version to Modulefile.
fixes #5486  prefix and candlepin url incorrect for rhsm template on dev install

* bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=1092474
* pass params to certs::katello class so that the appropriate prefix and candlepin url are created in the template