Merge remote-tracking branch 'isc-kea/master' into HEAD

diff --cc src/lib/config/Makefile.am
Simple merge

diff --cc src/lib/config/tests/command_mgr_unittests.cc
Simple merge

diff --cc src/lib/dhcpsrv/cfg_option.cc
Simple merge

diff --cc src/lib/dhcpsrv/client_class_def.cc
Simple merge

diff --cc src/lib/dhcpsrv/host_data_source_factory.cc
Simple merge

diff --cc src/lib/dhcpsrv/mysql_connection.cc
Simple merge

diff --cc src/lib/dhcpsrv/tests/generic_host_data_source_unittest.cc
Simple merge

diff --cc src/lib/dns/tests/masterload_unittest.cc
Simple merge

diff --cc src/lib/dns/tests/messagerenderer_unittest.cc
Simple merge

diff --cc src/lib/dns/tests/rrclass_unittest.cc
Simple merge

diff --cc src/lib/eval/eval_context.cc
Simple merge

diff --cc src/lib/eval/lexer.cc
Simple merge

diff --cc src/lib/eval/parser.cc
Simple merge

diff --cc src/lib/eval/token.cc
Simple merge

diff --cc src/lib/hooks/tests/callout_manager_unittest.cc
Simple merge

diff --cc src/lib/hooks/tests/hooks_manager_unittest.cc
Simple merge

diff --cc src/lib/log/Makefile.am
Simple merge

diff --cc src/lib/process/io_service_signal.cc
Simple merge

diff --cc src/lib/testutils/io_utils.cc
Simple merge

diff --cc src/lib/testutils/unix_control_client.cc
Simple merge

diff --cc tools/system_messages.cc
Simple merge