visualzhou/project100w — pull request #1 by visualzhou (2012-01-17 04:06:41+00:00)
Title: Signin

Finished user system. Document is here.
https://docs.google.com/document/d/1vvPmAe00Kyhh75ocqqyLR0RG43lkR9W1cOiw8IsopQ0/edit?hl=en_US