Facebook connector

Connector to Facebook social network (http://www.facebook.com).

Time costs:

PROFILES: ~50 users per 1 minute;
STATUSES: ~750 statuses per 1 minute (with count_replies=False and count_likes=False);
COMMENTS: ~2500 comments per 1 minute.

PROFILES:
- If using app-token (not user token) - followers count is not avaliable.

STATUSES:
- count_replies = True/False (default - True). Count number of comments per status. Original API has no 'replies_count' fieled. If count_replies = True, connector collects comments for every post and then counts them. It takes much more time: actually all comments section is being collected. If you don't need number of comments - switch this parameter to False to speedup the process.
- count_likes = True/False (default - True). Count number of likes per status. Original API has no 'likes_count' fieled. If count_likes = True, connector collects likes (with authorship) for every post and then counts them. It takes much more time. If you don't need number of likes - switch this parameter to False. Then every status likes parameter would be equal to zero.

Two types of token-data are available in KeyChain object:

token = 'ACCESS_TOKEN_STRING' - real access token, that is used to make requests. If App access token is used - it can be stored in such form, but it has some API-restrictions. Don't store User access token in this form: due to security reasons such tokens expires. User access tokens should be stored in raw formed and renewed every time, application is being executed. KeyChain identifier: fb.
Raw access data. KeyChain identifier: raw_fb. Format:
```
token = {
    'app_id'    :STRING,
    'app_secret':STRING,
    'app_url'   :STRING,
    'login'     :STRING,
    'password'  :STRING
}
```
In this form token data could be stored for unlimited time. Before using your token call KeyChain().autocomplete() or fb_auth function from smapy.utilities to generate valid common access token.

Read how to get access token: Facebook token