07/23/96    1. moved ARP check from just after dhcpcd received a
  0.2a         DHCPOFFER message to just after dhcpcd received a
               DHCPACK message.
            2. added 'Parameter Request List' in the DHCPDISCOVER message.
            3. added code to output the content of DHCP message option from
               the server
07/27/96    added '-i' option specifying the class identifier because
  0.2a      RFC1541 says "The client implementation of DHCP should
            provide a mechanism for the user to select directly the
            'class-identifier' value.".

08/09/96   added the code to make a copy of the DHCP options in the
  0.2      DHCPOFFER message because Windows NT server does not put
           DHCP options in the DHCPACK message except for netmask, T1
           time, and T2time. Other DHCP options are only in the
           DHCPOFFER message.

09/09/96   added support to the "router" option.
  0.25a     changed files: options.c, dhcp-options.h, dhcp.h, hostinfo.c,
                           if.c, client.c

09/11/96   1. fixed a bug in setDefRoute (if.c). rt_flags was RT_UP.
  0.3a        It should be RT_GATEWAY.
           2. fixed typos in openRecvSocket (socket-if.c)
           3. changed the way to invoke a command file from using
              signal to forking twice
           4. removed unnecessary socket close/re-open

09/12/96   added the following sample shell scripts:
  0.3b       1. "network" for pcmcia-cs
             2. "rc" scripts (rc.inet1, rc.inet2, rc.M)
             3. "rc.dhcp", a command file which can be executed from dhcpcd
09/13/96   1. enhanced NTP support. Now dhcpcd creates the file, ntp.conf
  0.3         in the directory, /etc/dhcpc.
           2. added the code verifying if router addresses are correct
09/16/96   fixed a typo in selecting (client.c)
  0.31
09/17/96   added the code checking option field to parseDhcpMsg (options.c)
  0.32
09/19/96   quick fix to make it work with ISC's dhcpd. I made BROACAST
  0.33     flag available and added the NEED_BCAST_RESPONSE macro.
           ISC's DHCP server is the Internet Draft compliant, but
           dhcpcd is RFC1541 compliant. So this is a "workaround" version.

09/22/96   made dhcpcd compliant to the Internet Draft in order to
  0.4      work with ISC version of DHCP server.
           Changed client.c, options.c, socket-if.c
