Defines an interface that the layout management implementation being used
can opt to support to provide localized names of folder nodes without
requiring such names to be embedded within the layouts for users.
Wraps
IUserLayoutManager interface to provide ability to
incorporate channels into a user layout that are not part of
their layout structure (persistent).
This helper class processes HttpServletRequests for parameters relating to
user layout actions, propogating appropriate events to the user's layout
manager, preferences, and channel manager.