Minor migrations adjustments
Allows null numeric_code for countries
Merge pull request #122 from onepercentclub/bb-fix-migrations

Minor migrations adjustments
Merge pull request #124 from jose-lpa/integration

`projects` app latest fixes
Merge pull request #125 from netogallo/integration

Allows null numeric_code for countries
Merge branch 'integration' of https://github.com/onepercentclub/bluebottle into integration