update SSL test certificates to not be expired

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10373 a83610d8-ad2a-0410-a6ab-fc0612d85776
do a slightly better job of deciding which peers to save in resume data

git-svn-id: svn://svn.code.sf.net/p/libtorrent/code@10374 a83610d8-ad2a-0410-a6ab-fc0612d85776