merged python fixes from RC_0_16

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9827 a83610d8-ad2a-0410-a6ab-fc0612d85776
extend timeout

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9828 a83610d8-ad2a-0410-a6ab-fc0612d85776
fix merge typo

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9829 a83610d8-ad2a-0410-a6ab-fc0612d85776
fix warning

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9830 a83610d8-ad2a-0410-a6ab-fc0612d85776
update changelog

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9832 a83610d8-ad2a-0410-a6ab-fc0612d85776
simplified setup.py to always build the bindings using bjam

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9833 a83610d8-ad2a-0410-a6ab-fc0612d85776
improve messaging of assert caused by precondition violation

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9834 a83610d8-ad2a-0410-a6ab-fc0612d85776
fixed some warnings

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9835 a83610d8-ad2a-0410-a6ab-fc0612d85776
expand buffer sizes for upnp error messages

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9838 a83610d8-ad2a-0410-a6ab-fc0612d85776