[VariationBundle] Fix unexpected dependency issue
[CoreBundle] Add ability to information how many products were sold
[OrderBundle] Remove unused config parameter
Merge pull request #1890 from stloyd/patch-2

[OrderBundle] Remove unused config parameter
Merge pull request #1887 from stloyd/feature/sold_variants

[CoreBundle] Add ability to information how many products were sold
Merge pull request #1807 from stloyd/bugfix/variation_validator

[VariationBundle] Fix unexpected dependency issue
Initial API
Setup testing architecture for API
Fix relations and metadata loading
Initial shipping method api tests
Rework code & fix issues after gathering feedback
Remove Alice and use already existing fixtures
Cleanup API code