fix auto login for `lx list --expired`
fix add_torrent_task_by_info_hash2, the hash must be capitalized
increase torrent file limit from 2M to 3M
add a link to https://github.com/iambus/xunlei-lixian-web
Merge branch 'master' of git://github.com/iambus/xunlei-lixian