Add a getExpectedAttributes method
Add attribute code in expected values arrays to prepare diff refactoring
Add getExistingValues method
Remove deprecated case : removing redundant values
Remove unused method
Refactor getExpectedValues to enhance performance and avoid extra
iterations on channels and locales
Fix browse product scenario
Merge branch 'master' into refactor/product_builder
Merge pull request #451 from akeneo/refactor/product_builder

Refactor/product builder