made the file pool global instead of local per torrent
made the file pool global instead of local per torrent


git-svn-id: 6df6a9299d9fe08e1e18eb0c01ae615f7df02338@445 a83610d8-ad2a-0410-a6ab-fc0612d85776

cscheid/libtorrent,kuro/libtorrent,cscheid/libtorrent,kuro/libtorrent,cscheid/libtorrent,cit/libtorrent-peer-idol,cit/libtorrent-peer-idol,cit/libtorrent-peer-idol,cscheid/libtorrent,cit/libtorrent-peer-idol,kuro/libtorrent,cscheid/libtorrent,kuro/libtorrent,cit/libtorrent-peer-idol,cit/libtorrent-peer-idol,cscheid/libtorrent