REFACTOR: Apply move method to increase the incapsulation of CouponBundle. Renamed mispelled class
Merge remote-tracking branch 'carlescliment/master' into feature/coupon-increment-usages
PHP-cs-fixer, docu and CouponInterface

* Added method into CouponInterface, so every coupon implementation should implement it
* Removed some methods in Interface and add Interface extensions
* Documented method
Changed incrementUsages to MakeUse method
Merge pull request #104 from elcodi/feature/coupon-increment-usages

Feature/coupon increment usages