re #5 : Added the entity customer, getter and setters are missing

re #5 : Working login feature with the new Entity

re #5 : Removed extra / character

re #5 : Applied PHP CodeSniff standards

re #5 : rename AddressId to addressId

re #5 : Removed the TODO, will be fixed in the addCustomer
re #5 Reverted the changes on getCustomer as they broke the edit profile page
Merge pull request #15 from opencart-rewrite/fix_5

Fix 5