Fix travis-ci failing
Complete the CommerceProductType / CommerceProduct entity type definitions
Merge pull request #63 from mglaman/2297393

Complete the CommerceProductType / CommerceProduct entity type definitions
Merge pull request #62 from Jbekker/fix-travis_ci

Fix travis-ci failing
Implement the EntityOwnerInterface for products.
Add missing use statement.
Only enable EUR, USD and GBD on install and create a new currency importer