Update requirements.txt
Merge pull request #38 from oussemos/master

Adding 'requests' to requirements.txt
ajout bouton persona et mise a jour des scripts
suppression fichier lors commit! bete je sais!
Update slides.py : Checking sqlalchemy Integrity
Merge pull request #40 from oussemos/master

Update slides.py : Checking sqlalchemy Integrity
Fixing #28 : le retour de addcategory corrige + test dexistance categorie + customisation du message de retour apres ajout
fix for new pull request - bug 28
fixing conflicts - new master fixed
merging branch master
before changes
test
clean branch master