Extended product repository and manager
Removed unnecessary return
Moved product type constants to product entity
Merge pull request #30 from sulu-cmf/feature/attributesetup

[FEATURE] Extended product repository and manager for fetching master product
Added constant for product attribute to product attribute entity
Implemented attributes for products
Removed unused code
Merge pull request #31 from sulu-cmf/feature/productattributes

[FEATURE] extended product manager and implemented ProductAttributeRepository
Implemented product status fixtures
Added fixtures for product types
Added product type fixtures
Changed public to private for product status id property
Merge pull request #32 from sulu-cmf/feature/product-status-types

[FEATURE] Implemented product status and product type fixtures
Merge branch 'develop' of git://github.com/sulu-cmf/SuluProductBundle into feature/pricing

Conflicts:
	Product/ProductManager.php