android support

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9358 a83610d8-ad2a-0410-a6ab-fc0612d85776
update changelog

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9359 a83610d8-ad2a-0410-a6ab-fc0612d85776
more documentation

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9360 a83610d8-ad2a-0410-a6ab-fc0612d85776
documentation polish

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9361 a83610d8-ad2a-0410-a6ab-fc0612d85776