squid 3.4.14: latest patches, sorted options

squid 3.4.14: latest patches, sorted options

The 'configure'-options were sorted (kind of) to get a better overview.

Added latest patches from upstream.

Changed '--enable-async-io=8' to '--enable-async-io=16' because of
http://www.squid-cache.org/mail-archive/squid-users/200705/0768.html :

"The default number of threads is dependent on the number of aufs
cache_dir lines, based on a reasonable estimate of how the code behaves."

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>