Changing mark Matching Variants default behavior

Breaking Change
For performance improvements, the "mark-matching-Variants" feature on the Product Projection search endpoint will be deactivated by default during the week of 11 September 2017. If your project does not require the "mark-matching-Variants" feature for product search, no further action is required from your side.

• [API] If you make use of this feature you now have to enforce it by explicitly setting the markMatchingVariants parameter to true on requests to this endpoint from next week onwards. Please refer to the documentation on how to set the parameter accordingly.