Lazy start the session. Refs #179
Fixed bad state persistence
Fix default state value
Fix coding standards
Fix code convention (PSR2)
Full customization of facebook login button supported
Merge pull request #183 from gquemener/fix-session-id

Lazy start the session. Refs #179
Add documentation on how to customize the facebook login button
Merge remote-tracking branch 'upstream/master'
Merge pull request #224 from Aitboudad/master

Added customization to facebook login button.