Add a deprecation notice for coming changes in mempool for 16.07.
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: David Hunt <david.hunt@intel.com>
Acked-by: Keith Wiles <keith.wiles@intel.com>