Vimeo: fix #259
add new module: util.log
add __init__.py
update module: util.log
update __init__.py
add new module: util.fs
change log.i() to no color
add log.underlined()
add new module: util.sogou_proxy
enable Sogou proxy for Sohu
enable Sogou proxy for Youku
Merge branch 'feature/sogou-proxy' into develop
TERM=screen (Tmux) compatible with ANSI/VT100
correct binary prefix
docstring for sogou_proxy_server()
update help message
update README.md: move zh-CN document to wiki
update README.md: move zh-CN document to wiki
update README.md
update README.txt