fix option doc
fix #82: incorrect path issue
support gzip to improve performance for #83
read from stdin if filename is -
Merge pull request #84 from tchaikov/master

read from stdin if filename is '-'
add a shorter option --bt as alias of --torrent
search 2011 in task name
fix #93, #13, and #50: download tasks by sequence numbers
update doc: replace --torrent with --bt
update aria2-opts doc per #93
fix #93: support download bt sub files by .ext
1. support lx list #n/. 2. ignore -n when listing bt
fix ed2k url check per #97
fix curl per #97
lx config curl-opts ...
move search code to lixian_tasks
refactor task search
fix import
fix lx download --input
fix typo