This component provides access to all other components used
throughout the portal.
Any component in the portal should never lookup these components
itself, but use this component manager instead.
This manager allows to run differently configured portals in Cocoon
at the same time.
This is the main component that has currently two actions:
Invoke the request processing using the
PortalManager.process() method,
this starts the event handling for the current request (evaluating
request parameters etc.)
The section method
PortalManager.showPortal(ContentHandler,Parameters) starts rendering the portal.