update dev_doc
add FileTable class
update Listen, remove lock
add new main for test FileTable
add UTF-8 support
add auto exit
erase 'get or got list' info from stdout
update Listener auto exit
add recursive create directory
update Test main
fix some bug: fix method's name
update
update
add new class 'NewGetor'
add new class 'NewDownload'
update
erase thread wait info
fix some bug
update README, update ver4.0