4 new abilitites to the ribbot

[majioa]

Hello

I've added 4 abilitites to the ribbot:

• to sign-in via Facebook;
• to link at the user table of owners to user's posts;
• to edit a user account ability to superusers;
• to promote (set level 0) and disrank (set level 10) users in participation table of forums.

To sign in via Facebook the user must pass special ENV variables similar this:

FACEBOOK_KEY=############# FACEBOOK_SECRET=########################## script/rails s -e development

or

FACEBOOK_KEY=############# FACEBOOK_SECRET=########################## unicorn_rails -c config/unicorn.rb -E production -D

If user omit the ENV vars, the ability will be disabled.

[iangcarroll]

Nice, the project seems inactive though.

[barmstrong]

Nice pull request - I unfortunately don't have any time to review pull requests for ribbot these days :/ I feel like we could use another maintainer for the project.

[iangcarroll]

I'd be happy to review the pull requests. While I'm not much of a Rails developer, I do know Rails and could help. I'd be reviewing moreover than submitting.