Tweak for older boost versions.
Tweak for older boost versions.

Change-Id: I11addc42c91015ee1e524cd5085bb68bab5093e4
Signed-off-by: Rob Adams <dc34e1981fc17062c98433ad1bfcab20a4e3a66c@readams.net>

opendaylight/opflex,opendaylight/opflex,opendaylight/opflex,opendaylight/opflex