Merge pull request #161 from sylvaindeloux/develop

SONATA-456 - Removed redundant labels
SONATA-447 - Add VAT amounts display in basket, order and invoice tables

Optimize units tests

Fix typo
Updated order & payment documentation
Merge pull request #163 from Bladrak/updateDoc

Updated order & payment documentation
Merge pull request #162 from eko/vatAmounts

SONATA-447 - Add VAT amounts display in basket, order and invoice tables
Updated invoice documentation
Merge pull request #164 from Bladrak/updateDoc

Updated invoice documentation
Fix products Facebook og:url meta to return correct url
Fix price_inc_vat to allow nullable
Merge pull request #166 from eko/tests

Fix price_inc_vat to allow nullable
Merge pull request #165 from eko/develop

Fix products Facebook og:url meta to return correct url
Fix SEO Facebook unit test
Merge pull request #167 from eko/develop

Fix SEO Facebook unit test
Fix order & invoice elements prices to be stored excluding & including VAT

Remove unitPriceIncludingVat property
Merge pull request #168 from eko/develop

Fix order & invoice elements prices to be stored excluding & including V...
Fixed case when no delivery address is provided
Merge pull request #169 from xavismeh/delivery-mandatory-address

Fixed case when no delivery address is provided
Added some serialization handlers