fixed bug in disk IO thread which would make it sometimes0 exit the thread if an error occurred
fixed bug in disk IO thread which would make it sometimes0 exit the thread if an error occurred

git-svn-id: 6df6a9299d9fe08e1e18eb0c01ae615f7df02338@2993 a83610d8-ad2a-0410-a6ab-fc0612d85776

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