Support Other Authentication Approaches

[jalcine]

Currently, ElixirStatus uses a direct OAuth2 authentication approach to GitHub to sign in. I'm curious how open you are to adding IndieAuth as another authentication method. Some people might not use GitHub and this'll lower the barrier to access. A few things would be required:

• Fetching user information would require more logic (only name, photo and a URI seem to be needed)
• Twitter profile info can be inferred from one's personal site using rel=me.

I have a library that can do most of the heavy lifting. I'm also down to providing the patches as well. Just want to gauge interest / openness to the idea.