refacto all bundle to use just one, and create main interface
start security bundle
Update README.md
Update README.md
Update README.md
add encoding password in datafixtures
add return password to getPassword function
Merge pull request #1 from ProjetMIAGE/feat.securityBundle

Feat.security bundle
downgrade for php 5.3
fix log-in for teacher and student, add log-out button
create entities for questionnaire management
Merge pull request #2 from ProjetMIAGE/entities.questionnaire

Entities.questionnaire