Log Message:
upgrade to 1.2.

1.2
=============
FEATURES:
        - NSD is now a single parent process (handling child
          termination and database reloads) plus multiple UDP and TCP
          child processes handling queries.  Before the parent process
          also handled UDP queries.  This change simplifies the parent
          and child processes and allows the use of multiple
          concurrent UDP servers.
	- Experimental plugin support.  This required a minor,
          incompatible change to the database format.  Make sure you
          recompile your database.  Use --enable-plugins to enable.
        - Full IPv6 support (for multi-homing and for Linux, thanks to
          Colm MacCárthaigh and Jun-ichiro itojun Hagino).  Use
          --enable-ipv6 to enable.
        - Support for multi-homing with TCP connections.
        - Support for SunOS 4.x has been dropped.

CODE CHANGES:
        - NSD should now conform to the Single Unix Specification
          (http://www.unix.org/).
        - Const correctness for strings and some other data types.
        - Removed code for Berkeley DB, hash tables, and mmap(2).
        - Separate preprocessor flags from code flags (CPPFLAGS and
          CFLAGS).
        - Use uint8_t instead of u_char, uint{16,32}_t instead of
          u_int{16,32}_t.
        - Fixed warnings from mixing signed and unsigned types.
        - Use sigaction(2) instead of signal(2).
        - The query_process function has been split up for clarity.

BUG FIXES:
	- CHAOS TXT queries failed on big-endian machines.
        - Portability fixes for Tru64 (thanks to Stephane Bortzmeyer),
          HP-UX, and MacOS X (thanks to Ronald van der Pol).
        - Removed compile time limit on maximum number of TCP child
          servers.
        - Support for debugging UDP and TCP queries.
        - Always ensure there is enough room for the EDNS record when
          answering a query with EDNS enabled.