Added date translator
Added the transformer
Merge branch 'coupons' of https://github.com/roadster31/thelia into coupons

Conflicts:
	core/lib/Thelia/Controller/Admin/CouponController.php
	templates/backOffice/default/coupon/form.html
Removed useless transactions
Added a localized check to the expiration date
Fixed date manipulation²
Added flags for i18n fields
No longer used
The stanck trace is displayed if an exception is thrown
Removed unused parser reference in contructor
Minor syntax change.
Fixed usage count display
Fixed form error management
Fixed test
Typo
HTML fragments in templates instead of hardcoded
Fixed condition category tolltip reset
drawBackOfficeInputs() is now abstract
Changed condition section title
change URL to sitemap in robots.txt