Changes with nginx 1.0.1 03 May 2011

*) Change: now the "split_clients" directive uses MurmurHash2 algorithm
because of better distribution.
Thanks to Oleg Mamontov.

*) Change: now long strings starting with zero are not considered as
false values.
Thanks to Maxim Dounin.

*) Change: now nginx uses a default listen backlog value 511 on Linux.

*) Feature: the $upstream_... variables may be used in the SSI and perl
modules.

*) Bugfix: now nginx limits better disk cache size.
Thanks to Oleg Mamontov.

*) Bugfix: a segmentation fault might occur while parsing incorrect
IPv4 address; the bug had appeared in 0.9.3.
Thanks to Maxim Dounin.

*) Bugfix: nginx could not be built by gcc 4.6 without --with-debug
option.

*) Bugfix: nginx could not be built on Solaris 9 and earlier; the bug
had appeared in 0.9.3.
Thanks to Dagobert Michelsen.

*) Bugfix: $request_time variable had invalid values if subrequests
were used; the bug had appeared in 0.8.47.
Thanks to Igor A. Valcov.