enable user authentication by facebook access token
update readme to provide an example on server-side login from mobile apps
fix facebook user logs in again
fix passing access token to remaining generating FacebookUserToken code
Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md
Remove overly broad try/catch block
Update coding style
Merge pull request #225 from jhkchan/master

Enable user authentication by access token
adding a hack to keep compatibility between sf2.1 and sf2.2
adding bin to the gitignore file
Using relative links on documentation
Merge branch 'master' of git://github.com/danfinnie/FOSFacebookBundle into danfinnie-master

Conflicts:
	Security/Authentication/Provider/FacebookProvider.php
Removing the hack to deal with compatibility between sf2.2 and sf2.1

We no longer need it since PR #231
Replacing the RuntimeException by AuthenticationException on FacebookProvider::createAuthenticatedToken
Fixing a typo