Contains default credentials but these should be overwritten with
group or host -destined variables.
Add default credentials
Hide real credential files from git
Differentiated between both.
Development environment takes place locally, most directly through the
use of a vagrant machine on the development machine.
Staging environment mimics the final production environment, but is
situated on another server and, most probably, points to a different
address. Otherwise, however, it translates much more closely (dns
entries etc) to the production setup.
Production is just that, the final deployment.
