Merge branch 'dev'
release v0.3.0
Fixed "socket.error: [Errno 48] Address already in use" problem
add setup.cfg to support markdown readme on pypi
update readme and use English instead of Chinese
release v0.3.1
update package description
Add new feature: config file add `index` option to choose using auto
generate catalog as index page, or set any source file as index page.