Changes with nginx 0.5.37 07 Jul

*) Bugfix: if sub_filter and SSI were used together, then responses
   might were transferred incorrectly.

*) Bugfix: large SSI inclusions might be truncated.

*) Bugfix: worker processes might not catch reconfiguration and log
   rotation signals.

*) Bugfix: nginx could not be built on latest Fedora 9 Linux.
   Thanks to Roxis.

*) Bugfix: a segmentation fault might occur in worker process on 

if keepalive was enabled.

*) Bugfix: an alert "sendmsg() failed (9: Bad file descriptor)" on 

64-bit platforms while reconfiguration.