Log Message:
Update to 6.0.0:

6.0.0:
  * Support Berkeley DB 6.0.x.
  * HEADS UP: If you are using "bsddb3._bsddb" in your code,
    for example for exceptions, change it to "bsddb3._db".
  * Print test working directory when running the testsuite.
    You can control it using "TMPDIR" environment variable.
    Defaults to "/tmp/z-Berkeley_DB/".
  * Support for "DB_EVENT_REP_AUTOTAKEOVER_FAILED" event.
  * Support for "DB_REPMGR_ISVIEW", "DB_DBT_BLOB", \ 
"DB_LOG_BLOB",
    "DB_STREAM_READ", "DB_STREAM_WRITE" and \ 
"DB_STREAM_SYNC_WRITE" flags.
  * Some DB_SEQUENCE function signatures changed in Berkeley DB 6.0.x.
  * Erratic behaviour of "DBEnv->rep_elect()" because a typo.
  * The testsuite prints Python bitness (32/64).
  * Tests compatible with hash randomization, default
    in Python 3.3. See http://bugs.python.org/issue13703 .
  * Errors when trying to calculate the length of a DB were
    masked, and an unuseful and unrelated exception was raised.
  * Code cleanup since pybsddb is not in the Python 3.x stdlib
    anymore, and the version in Python 2.6/2.7 is being
    maintained separately.
  * Improvements to documentation generation.