Check authentication logic for Facebook class

[diplix]

I won’t get the Facebook class to work and suspect, that the authentication doesn’t work all right. which could also be, because the combination of facebook app and reclaim installation does not fit.

(folow up issues would be: make it more comfortable to enter facebook data, while maintaining the concept of decentralisation and not making a central facebook app to get the users oauth data)

[diplix]

it's working now (example: http://root.wirres.net/reclaim/category/facebook/). you still have to get some things done:

• register an facebook app (like this: http://smashballoon.com/custom-facebook-feed/access-token/)
• the facebook app need only a display name an a site url (settings/+add platform) for the callback function. use the wordpress domain on which reclaim is supposed to run
• enter app_id and app_secret (save them)
• get facebook permissions (click "on click to get permissions" in the reclaim facebook settings)