Log Message:
Changes 3.1.10:
* Bug 3121: memory leak in DigestAuth: AuthUser object is locked twice
* Bug 3113: Consuming too much memory when uploading files
* Bug 3110: 'reply_body_max_size none' does not work with x-forwarded-for
* Bug 3096: Consuming too much memory when delaying traffic
* Bug 3091: Bypassed ICAP errors are not counted as service failures
* Bug 3090: Polish FTP login error handing
* Bug 3068: cache_dir capacity and usage overflows
* Bug 3028: Permit wbinfo_group.pl to authenticate Kerberos users with NT domain
* Bug  427: HTTP Compliance: Support If-Match and If-None-Match requests
* Fix memory leak in adaptation_access
* Fix /dev/poll and poll() selection priority
* Fix PREFIX/var/run creation during install
* Fix cachemgr http_port config report display
* Add upgrade help process for obsolete options
* Accept RFC 2965 Set-Cookie2 / Cookie2 headers as 'known'
* HTTP/1.1: entry is stale if request has max-age=0
* HTTP/1.1: do not forward TRACE with Max-Forwards: 0 after REQMOD
* Toolchain update to support newer auto-tools
* ... and updated error page translations
* ... and updated documentation
* ... and some code optimization/simplification polish