Poc/apiimport2.0

Options price computing is not finished (it's the old one). See more : https://akeneo.atlassian.net/browse/MC-35
Fixed in getProductPrice https://github.com/akeneo/MagentoConnectorBundle/pull/261/files#diff-eb18a5844aca1c4a4ef6d53c6a3f7a6bR285