Log Message:
Updated to latest release, 2.7.3.30. From CHANGES.txt:
2.7.3.30 - 2012-06-28
---------------------

- Fixed ImportError in billiard._ext

2.7.3.29 - 2013-06-28
---------------------

- Compilation: Fixed improper handling of HAVE_SEM_OPEN (Issue #55)

    Fix contributed by Krzysztof Jagiello.

- Process now releases logging locks after fork.

    This previously happened in Pool, but it was done too late
    as processes logs when they bootstrap.

- Pool.terminate_job now ignores `No such process` errors.

- billiard.Pool entrypoint did not support new arguments
  to billiard.pool.Pool

- Connection inbound buffer size increased from 1kb to 128kb.

- C extension cleaned up by properly adding a namespace to symbols.

- _exit_function now works even if thread wakes up after gc collect.