correction modification stock

See merge request !46

Quantite minimax

See merge request !45

# Conflicts:
#   api.js

ajout rapport

See merge request !43

# Conflicts:
#   index.md

check injection sql (non testé)

See merge request !44

identification admin et methodes hash

See merge request !40

traitement des erreurs

See merge request !42

(api) plain/text -> json

See merge request !41

Fautes

See merge request !39

(api.js): refactor to json

See merge request !37