New fix & functionalites

- Fix
Wrong version number in config.xml

- Add
New choice in admin back-office if you want to redirect to default
checkout cart page or new atos failure page if a payment fail.

- Add
New detailed informations about payment and credit card in sales
back-office for standard and several payment method.

- Fix
Generate button in back-office return nothing if lib/atos is not
writeable. New error's message display.