[ResourceBundle] The collection form type has been improved
[WebBundle] Fix invalid html markup for payments forms

Added easier way to change states & hide editing for non super admins
Updated to describe defaulting to property name behaviour

Updated the spec for the Twig extension, so it describes the behaviour that happens when rendering a sorting link with no field name.
I've also renamed the "it_should_not_render_sorting_link" to "it_should_not_render_sorting_link_when_not_sortable" so it's more consistent with the new scenario name, and also a little more explicit about what it does.
Fixed renderSortingLink not defaulting to property

Fixed renderSortingLink not defaulting to using the property name when sortable is set to false.
Merge pull request #2202 from LewisW/master

[ResourceBundle] Fixed renderSortingLink not defaulting to property name
[AttributeBundle] Fix key names for validation_groups config
Merge pull request #2203 from adamelso/attribute-validation-groups-config

[AttributeBundle] Fix key names for validation_groups config
Merge pull request #2197 from aRn0D/form-collection

[ResourceBundle] The collection form type has been improved
[CoreBundle] Fix version constraint on jms/serializer-bundle
Merge pull request #2208 from adamelso/core-bundle-jms-serializer-version

[CoreBundle] Fix version constraint on jms/serializer-bundle
Adding elasticsearch to Vagrant box
Update bootstrap.sh
Merge pull request #2209 from antonioperic/master

Adding elasticsearch to Vagrant box
Added Volume based shipping calculator
Removed duplicate route `sylius_api_product_variant_delete`
Merge pull request #2212 from steffenbrem/feature/bug-fix-api-product-variants

Removed duplicate route `sylius_api_product_variant_delete`
Fix some CS issues
Merge pull request #2213 from stloyd/bugfix/cs

Fix some CS issues
Merge pull request #2210 from antonioperic/addingVolumeForShipping

Added Volume based shipping calculator
cascade-all for billing address preventing deletion of orders and cart resulting integrity constraint violation