Added support to pass a catalog_path option to the
Fabuloso class, cli and shell interfaces.

Now its possible to have multiple and isolated catalog
environments. This feature is required to implement
the new Automation architectures.

Closes-Bug: http://jira.stackops.org/jira/browse/FABULOSO-13
Change-Id: I02ad977d3da37daaf140758e7698f841fc1abc65