…tate

…late

Also added missing ChannelBasedCalculator spec.

…d attributes starting with lowercase letters

If you don't ask for the field "email" sylius will crash trying to "INSERT INTO sylius_customer" with an empty e-mail.

…eType and TaxCategoryType

[TaxationBundle] Add validation  for filed 'code' from TaxRate and TaxCategory
[Taxation] Add field 'code' to TaxCategory and TaxRate, TaxCategoryInterface and TaxRateInterface extend AwareCodeInterface
[WebBundle] Add code filed to TaxCategory views and to TaxRate views

[MailerBundle] Add AddCodeFormSubscriber to EmailType

…ce extends CodeAwareInterface

[PaymentBundle]  PaymentMethodType add AddCodeFormSubscriber to builder

[ChannelBundle] Add AddCodeFormSubscriber to ChannelType

…nts CodeAwareInterface

[PromotionBundle] add AddCodeFormSubscriber to PromotionType and to CouponType

[ArchetypeBundle] Add AddCodeFormEventSubscriber to ArchetypeType

With the introduction of AppVeyor continuous integration and
improved setup of Travis, the root directory may start to become
disorganised or cluttered, especially if there are more tools to
be integrated in the future. Moving files for AppVeyor, Travis and
Vagrant into an "etc" directory will help estabish a new location
for similar files.

…build directory, made javascripts more fail-safe

…e" (it would throw: `Cannot use nodename property "name" of class "Xyz" as a dynamic operand use "localname()" instead.`)

…ContentController and Sylius' ResourceController

…d-output to etc/build