This adds support for running swift as the messaging backend of Zaqar,
and SQLAlchemy as the management backend.
Change-Id: I448d303d01e33a0d89625d7ff442b652838d9c36
This adds defined anchor points for external modules to hook into the
software install, config and service dependency chain. This allows
external modules to manage software installation (virtualenv,
containers, etc) and service management (pacemaker) without needing rely
on resources that may change or be renamed.
Change-Id: If4f585264f5f5a15549855d97b532866d91f5215