to always get the memory context parameter
(even if it is not needed) to provide a cleaner
and simpler user interface
(instead of requesting the user to use directly m_context).
Communication thread buffer needs to use the global pool,
and not a local pool, since the allocation is done accross
several threads.
Therefore the non thread fixed queue & stack interfaces are moved into
a dedicated header (m-queue)
and remove support for non thread stack & queue into m-buffer
Remove also deprecated policy too.
Patrick Pelissier