Add OpenID

[pera]

Twitter for login sucks, it would be nice to have OpenID :)

EDIT: o hasta algo mejor como Mozilla Persona (hay una linda explicacion en http://labs.newsint.co.uk/blog/2012/10/why-mozilla-persona-is-the-right-answer-to-the-question-of-identity/)

[elf-pavlik]

+1 Mozilla Persona!

[impronunciable]

@elf-pavlik the repo is https://github.com/danzajdband/hackdash