Update translations.

Add some missing strings that have been accidentially
been removed when a commit was reverted.
general-functions.pl: Add function to get the used interface on red.
firewalllogcountry.dat: Fix chart for dial-in connections.
proxy.cgi: Allow safe/SSL ports to be empty.

Fixes a syntax error in the generated squid configuration
file.
proxy.cgi: Move {minimum,maximum}_object_size before cache_dir.

The cache_dir directive ignores the object size directives
if those have not been set prior to cache_dir.

http://bugs.squid-cache.org/show_bug.cgi?id=3830