Update README.md
Merge pull request #3 from jvelilla/master

Removed dependencies to eel and eapml library replaced by the new
Merge remote-tracking branch 'upstream/master'
Document how to get the crypto library
Merge pull request #4 from oligot/doc

Document how to get the crypto library
Template_authorize_url  string updated

Template_authorize_url contained a string "/auth" which was not accepted
by Facebook.
Merge pull request #1 from andersoxie/facebook-correction

Facebook correction