Squashed commit of the following:

Squashed commit of the following:

commit 7ef19ab918cc9805abb8d01e8220ae4ed63155d7
Author: Evan Prodromou <evan@status.net>
Date:   Mon Jul 9 12:53:29 2012 -0400

    Show link to facebook account on profile block

    If you've logged in with Facebook, show a link to that account on the profile block.

commit b56967479c009d702150791944dbd80746ee3ba1
Author: Evan Prodromou <evan@status.net>
Date:   Mon Jul 9 12:28:34 2012 -0400

    Add profile link from profile block to Twitter account

    Add a profile link to Twitter for accounts that are linked via Twitter login.

commit 181e441fd03c6034e737f6a3dae115557aa3e1aa
Author: Evan Prodromou <evan@status.net>
Date:   Mon Jul 9 11:57:56 2012 -0400

    OpenID shows other account links

commit ef7357883dad9e34af2746e1c6a41ea826d7c992
Author: Evan Prodromou <evan@status.net>
Date:   Mon Jul 9 11:53:12 2012 -0400

    Add a profile link for OpenIDs

    OpenID plugin now adds a profile link for each OpenID on the account.

commit 093d26b95bc453686d24c42f5a8f4739cb338fd2
Author: Evan Prodromou <evan@status.net>
Date:   Mon Jul 9 11:15:18 2012 -0400

    Better array access

commit 49d47257efdcae2101b589a1f825872bdd70667c
Author: Evan Prodromou <evan@status.net>
Date:   Mon Jul 9 10:57:16 2012 -0400

    Show list of other accounts in profile block

    We add a group of "rel-me" links to other user accounts on the Web.

    This is mostly useful for when you've used OpenID, Twitter, or
    Facebook login to associate a remote account.

    There's an extension to the profileblock recipe to show the links as
    little icons; there's a new hook in accountprofileblock to get such
    links from plugins.

    There's a modification to the base theme to show the icons correctly
    (I think).