support magnet links wrapped in .torrent files

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9660 a83610d8-ad2a-0410-a6ab-fc0612d85776
merged python binding fixes from RC_o_16

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9662 a83610d8-ad2a-0410-a6ab-fc0612d85776
merged python documentation fix from RC_0_16

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9665 a83610d8-ad2a-0410-a6ab-fc0612d85776
add support for -fsanitize= options to jamfile

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9666 a83610d8-ad2a-0410-a6ab-fc0612d85776