add a php class for session managment + add an implement for a mysql backend
add netbean meta to gitignore
fix: namespace errors in PHPMysqlSessionBackend class and improve write and read methods
add a new class which extends AbstractSession class
add a User class to map user infos between session and DB
add database sql schema
add the frontal authentification script which init the session and call the login form
bad thing: don't handle php errors
fix: need to call mysqli_escape in an object way
rename: php scipt which render html things
rename: authentification.php became a front ctr
refactor: put all scipt that render something in a views directory and call these from the front ctr index
fixes: some issues in session managment classes
protection du paramètre get 'action'
charset utf8 pour la table sessions
cleanup: remove debug stuff
adapt render_index and js scipt to new routing rules
fetch available sites from user Object session
throw exception if User object in session is not valid
refactor: use constant in config file instead of variables