Log Message:
Update to version 0.27.  This is necessary to support bdb 4.4...

0.27  1st Novemver 2005

        * Added support for Berkeley DB 4.4

        * Fixed decondary key issue with recno databases

        * Added libscan to Makefile.PL

        * The logic for set_mutexlocks was inverted when using Berkeley DB 4.x
          Bug spotted by Zefram <zefram@fysh.org>

        * Transactional rename/remove added.
          Patch supplied by Zefram <zefram@fysh.org>