restore gen_stats_docs.py

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@10091 a83610d8-ad2a-0410-a6ab-fc0612d85776
merged web seed redirect fix from RC_1_0

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@10093 a83610d8-ad2a-0410-a6ab-fc0612d85776
added missing files

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@10094 a83610d8-ad2a-0410-a6ab-fc0612d85776