[Core] Extend OrderRepositoryInterface to add some missing methods
CS fixes
Prevent removing coupons when sylius_promotion_coupon_order record is deleted
Merge pull request #1782 from umpirsky/fix/deleted-coupons

Prevent removing coupons when sylius_promotion_coupon_order record is deleted
Merge pull request #1780 from aRn0D/cs-fix

Several CS fixes
Merge pull request #1776 from stloyd/feature/core_order_repo

[Core] Extend OrderRepositoryInterface to add some missing methods
[ResourceBundle] Allow to fetch API serialization details from headers
Merge pull request #1783 from stloyd/feature/api_versioning

[PoC][ResourceBundle] Allow to fetch API serialization details from headers
Fixing the parameter parser (see #1168)
Fix comment.
Merge pull request #1788 from kayue/fix/parser

Fixing the parameter parser (see #1168)
Small fix
Add toString to Currency model
Allow to override route parameters.
Merge pull request #1792 from aRn0D/fix/resource-spec

Fixing the parameter parser spec
Merge pull request #1793 from kayue/patch-1

Add toString to Currency model
Merge pull request #1794 from foopang/master

Allow to override route parameters.
Fixed bug that caused an error: "array_merge(): Argument #2 is not an array" when there is no parameter with keys "criteria" and "sorting"
Merge pull request #1796 from sivolobov/master

Fixed bug that caused an error: "array_merge(): Argument #2 is not an ar...