Update to 4.29:

Version 4.29, 2009.12.02, urgency: MEDIUM:
* New features sponsored by Searchtech Limited http://www.astraweb.com/
  - sessiond, a high performance SSL session cache was built for stunnel.
    A new service-level "sessiond" option was added.  sessiond is
    available for download on ftp://stunnel.mirt.net/stunnel/sessiond/ .
    stunnel clusters will be a lot faster, now!
* Bugfixes
  - "execargs" defaults to the "exec" parameter (thx to Peter Pentchev).
  - Compilation fixes added for AIX and old versions of OpenSSL.
  - Missing "fips" option was added to the manual.

Version 4.28, 2009.11.08, urgency: MEDIUM:
* New features
  - Win32 DLLs for OpenSSL 0.9.8l.
  - Transparent proxy support on Linux kernels >=2.6.28.
    See the manual for details.
  - New socket options to control TCP keepalive on Linux:
    TCP_KEEPCNT, TCP_KEEPIDLE, TCP_KEEPINTVL.
  - SSL options updated for the recent version of OpenSSL library.
* Bugfixes
  - A serious bug in asynchronous shutdown code fixed.
  - Data alignment updated in libwrap.c.
  - Polish manual encoding fixed.
  - Notes on compression implementation in OpenSSL added to the manual.

(wiz)