clean more files with the clean script

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9848 a83610d8-ad2a-0410-a6ab-fc0612d85776
print output from failing builds in regression tests

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9849 a83610d8-ad2a-0410-a6ab-fc0612d85776
fix python binding build

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@9850 a83610d8-ad2a-0410-a6ab-fc0612d85776