src/lib/testutils/dhcp_test_lib.sh.in
    renamed kill_processes to kill_processes_by_name
    replaced call to kill_pids with call to kill_processes_by_name

Explained that the "duid" parameter is accepted for DHCPv4
reservations but shouldn't be used because will be
misinterpreted.

    Merges branch 'trac4237'

AUTHORS
    Added pull submitter,https://github.com/isc-projects/kea/pull/16,
    Sebastien Couture.

src/bin/admin/scripts/mysql/dhcpdb_create.mysql
    Fixed "FROm"

Bumps MySQL schema version from 4.0 to 4.1.

Fixes the issue spelled out in 4238 by adding an entry for hardware
address source of zero. This change was added here to limit the
number of schema version bumps.

Changes the MySQL lease dump functions to order by the lease address.
This ensures the dumps always ordered in a predictable manner.

src/bin/admin/scripts/mysql/upgrade_4.0_to_4.1.sh.in
    New file to upgrade from 4.0 to 4.1

configure.ac
    Added entry for mysql/upgrade_4.0_to_4.1.sh

src/bin/admin/scripts/mysql/Makefile.am
    Added entry form upgrade_4.0_to_4.1.sh

src/bin/admin/scripts/mysql/dhcpdb_create.mysql
    Added insert of HWADDR_SOURCE_UNKNOWN  into lease_hwaddr_source
    Added order by clauses to lease4DumpData and lease6DumpData
    Updated schema version from 4.0 to 4.1

src/bin/admin/tests/mysql_tests.sh.in
    mysql_upgrade_test()
        Added test for 4.0 to 4.1 upgrade
        Changed final version check to 4.1

Minor updates to the commentary for get_pid function.

    Merges in branch 'trac4247'

src/lib/dhcp/pkt.cc
    Pkt::getMAC(uint32_t hw_addr_src)
        sets HwAddr.source_ to HWADDR_SOURCE_RAW if appropriate

    Pkt::getMACFromIPv6(const isc::asiolink::IOAddress& addr)
        sets HwAddr.source_ to HWADDR_SOURCE_IPV6_LINK_LOCAL

src/lib/dhcp/pkt6.cc
    Pkt6::getMACFromDUID()
        sets HwAddr.source_ to HWADDR_SOURCE_DUID

    Pkt6::getMACFromIPv6RelayOpt()
        sets HwAddr.source_ to HWADDR_SOURCE_CLIENT_ADDR_RELAY_OPTION;

    Pkt6::getMACFromDocsisModem()         sets HwAddr.source_ to HWADDR_SOURCE_DOCSIS_MODEM;

    Pkt6::getMACFromDocsisCMTS()
        sets HwAddr.source_ to HWADDR_SOURCE_DOCSIS_CMTS;

    Pkt6::getMACFromRemoteIdRelayOption()
        sets HwAddr.source_ to HWADDR_SOURCE_REMOTE_ID;

src/lib/dhcp/tests/pkt6_unittest.cc
    Added checks for correct HWAddr::source_ values to the following tests:
    TEST_F(Pkt6Test, getMAC)
    TEST_F(Pkt6Test, getMAC)
    TEST_F(Pkt6Test, getMACFromIPv6LinkLocal_direct)
    TEST_F(Pkt6Test, getMACFromIPv6LinkLocal_singleRelay)
    TEST_F(Pkt6Test, getMACFromIPv6LinkLocal_multiRelay)
    TEST_F(Pkt6Test, getMACFromIPv6RelayOpt_singleRelay)
    TEST_F(Pkt6Test, getMACFromIPv6RelayOpt_multipleRelay)
    TEST_F(Pkt6Test, getMACFromDUID)
    TEST_F(Pkt6Test, getMACFromDUID)
    TEST_F(Pkt6Test, getMAC_DOCSIS_Modem)
    TEST_F(Pkt6Test, getMAC_DOCSIS_CMTS)
    TEST_F(Pkt6Test, getMACFromRemoteIdRelayOption)

 - this was used in bind10 for enabling SQLite in auth DNS

 - split classification into several subsections
 - removed text explaining configuration backends