src/lib/dhcp_ddns/ncr_msg.*
    Added NameChangeRequest::conflict_resolution_

src/bin/d2/d2_update_mgr.cc
    D2UpdateMgr::makeTransaction() - use's the NCR's value for
    use-conflict-resolution() in determining which type of transacation
    to create.

src/bin/d2/simple_add.* - new files
    SimpleAddTransaction() - new class which executes a DNS add
    without conflict resolution.

src/bin/d2/simple_remove.* - new files
    SimpleRemoveTransaction() - new class which executes a DNS remove
    without conflict resolution.

src/bin/d2/tests/simple_add_unittests.cc - new file
    Tests SimpleAddTransaction

src/bin/d2/tests/simple_remove_unittests.cc - new file
    Tests SimpleRemoveTransaction

src/bin/dhcp4/tests/d2_unittest.cc
src/bin/dhcp6/tests/d2_unittest.cc
src/bin/d2/tests/d2_process_unittests.cc
src/bin/d2/tests/d2_queue_mgr_unittests.cc
src/bin/d2/tests/d2_update_mgr_unittests.cc
src/bin/d2/tests/nc_add_unittests.cc
src/bin/d2/tests/nc_remove_unittests.cc
src/bin/d2/tests/nc_trans_unittests.cc
src/lib/dhcp_ddns/tests/ncr_udp_unittests.cc
src/lib/dhcp_ddns/tests/ncr_unittests.cc
src/lib/dhcpsrv/tests/d2_udp_unittest.cc
    updated tests