support web seeds that resolve to multiple IPs

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10328 a83610d8-ad2a-0410-a6ab-fc0612d85776
added comment

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10329 a83610d8-ad2a-0410-a6ab-fc0612d85776
fix build

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10330 a83610d8-ad2a-0410-a6ab-fc0612d85776
one more fix

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10331 a83610d8-ad2a-0410-a6ab-fc0612d85776
one last fix to the web_seed_entry patch

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10332 a83610d8-ad2a-0410-a6ab-fc0612d85776
some socks5 cleanup

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10333 a83610d8-ad2a-0410-a6ab-fc0612d85776
optimize tracker_manager interface to avoid rendering and parsing strings for each peer-ip

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10334 a83610d8-ad2a-0410-a6ab-fc0612d85776