[master] Merged trac4267 (final run_one())

diff --cc AUTHORS
Simple merge

diff --cc src/bin/dhcp4/dhcp4_messages.mes
Simple merge

diff --cc src/bin/dhcp4/dhcp4_srv.cc
Simple merge

diff --cc src/bin/dhcp6/dhcp6_messages.mes
Simple merge

diff --cc src/bin/dhcp6/dhcp6_srv.cc
Simple merge