###version 1.4.1 - 05/11/2013
- Fixed issue with email subject
###version 1.4 - 23/10/2013
- Added flag to manage users, allows to identify the source of the user
- Improved subject email, allowing to indentify the source of the user
###version 1.3.1 - 22/10/2013
- Fixed merge existing users issue
- Fixed CSRF warings
###version 1.3.1 - 24/07/2013
- Minor fixes
- Minor improvements
###version 1.2 - 22/02/2013
- Add username support (version 3.1+)
###version 1.1 - 21/11/2012
- Updated Facebook PHP SDK
- Fixed logout error
- Improved login process
- Cleaned code
###version 1.0 - 23/12/2011
- Stable version
- Function to get the facebook login url just in case you want to customize your login button/text
###version 1.0-alpha - 21/12/2011
- Updated language strings
- Added more languages (not completes because the update of the string): arabic, greek, croatian, macedonian, malay, romanian
- Improved facebook login
- User activated by default (we don't check the user options)
###version 0.9.2 - 14/09/2011
- Added new languages: german, persian, french, latvian, slovak, swedish