Changes with nginx 1.0.5 19 Jul 2011

*) Change: now default SSL ciphers are "HIGH:!aNULL:!MD5".
Thanks to Rob Stradling.

*) Feature: the "referer_hash_max_size" and "referer_hash_bucket_size"
directives.
Thanks to Witold Filipczyk.

*) Feature: $uid_reset variable.

*) Bugfix: a segmentation fault might occur in a worker process, if a
caching was used.
Thanks to Lanshun Zhou.

*) Bugfix: worker processes may got caught in an endless loop during
reconfiguration, if a caching was used; the bug had appeared in
0.8.48.
Thanks to Maxim Dounin.

*) Bugfix: "stalled cache updating" alert.
Thanks to Maxim Dounin.