a changelog for rc5

Changes so far in 0.0.9:

rc5:

  o Bugfixes on 0.0.8.1:

    - Disallow NDEBUG. We don't ever want anybody to turn off debug.

    - Let resolve conns retry/expire also, rather than sticking around

      forever.

  o Bugfixes on 0.0.9pre:

    - Fix integer underflow in tor_vsnprintf() that may be exploitable;

      thanks to Ilja van Sprundel for finding it. People running 0.0.9pre5

      or later might want to upgrade while we investigate.

    - If anybody set DirFetchPostPeriod, give them StatuFetchPeriod

      instead.  Impose minima and maxima for all *Period options; impose

      even tighter maxima for fetching if we are a caching dirserver.

      Clip rather than rejecting.

    - Fetch cached running-routers from servers that serve it (that is,

      authdirservers, and servers running 0.0.9rc5-cvs or later.)

  o Features:

    - Accept *:706 (silc) in default exit policy.

    - Implement new versioning format for post 0.1.

    - Support "foo.nickname.exit" addresses, to let Alice request the

      address "foo" as viewed by exit node "nickname". Based on a patch

      by Geoff Goodell.

    - Make tor --version --version dump the cvs $Id$ of every file.

rc4:

  o Bugfixes on 0.0.8.1:

    - Make windows sockets actually non-blocking (oops), and handle