proxy-indirection network functions (name_lookup, new_connection,
new_listener) takes a `const Config *' as an argument, and extracts
enough information from it before returning to handle that
particular network operation in accordance with the proxy settings
it specifies. This involved {win,ux}net.c due to a `const'
repercussion.
[originally from svn r2567]
CONNECT, but contains an extensible framework to allow other
proxies. Apparently SOCKS and ad-hoc-telnet-proxy are already
planned (the GUI mentions them already even though they don't work
yet). GUI includes full configurability and allows definition of
exclusion zones. Rock and roll.
[originally from svn r1598]
