Ticket 15 - Improve instance configuration ability
Bug Description: We should be able to create and configure an instance
from python, rather than template-dse.ldif. This gives us the ability
to *install* and *upgrade* to a specific base version of the DS server.
Fix Description: Implement stubs for our plugins, and prove the operation
works by enabling whoami during a minimal python install.
Review by: spichugi (Thanks!)