- MAGETWO-56749: Optimize StoreFront performance

[MPI] Bugfixes

MAGETWO-51655 [Improvement] Convert customer group identifier field from SMALLINT to INT

Bug
- MAGETWO-59870 Grunt spec task runs on incorrect ports for several areas

Bugs:
* MAGETWO-59325: Unable to add custom attribute to product
* MAGETWO-54491: Match products by rule in admin not working

[Troll] bugfixes

MAGETWO-59482 Wishlist dependency on B2B requisition list block
MAGETWO-59227 Customer Address/Customer attribute isn't validated if required
MAGETWO-54296 Сategory suffix does not change after the second configuration changes

[Performance] MAGETWO-58960: A big amount of sql queries on Configurable Page

Fixed issues:
- MAGETWO-57432: Functional test Magento\Bundle\Test\TestCase\CreateBundleProductEntityTest is failed
- MAGETWO-55510: "Client side less compilation" does not work properly #3325
- MAGETWO-54935: [Github #1931] Cancellation of element removal in layouts doesn't work

Jsunit

[DRAGONS] Bugs fixing (P0)
- MAGETWO-52717 [GitHub] Configurable product disabling lowest price associated product still shows its price #4419
- MAGETWO-59315 Non consistent save Product Stock Item via Web API and repository directly

required

Merge branch 'develop' of github.com:magento/magento2ce into troll_bugfix

[Folks] Bugs
- MAGETWO-58334 [Github] Free shipping is not applied if cart price rule match #6584
- MAGETWO-57278 For Dutch locale, ZIP in checkout is already giving out a "validation failed" error at page load
- MAGETWO-57675 [GITHUB] WYSIWYG editor does not show. #6222 #4828 #6815
- MAGETWO-56836 [FT] Update wishlist button doesn't receive the click in AddProductsToCartFromCustomerWishlistOnFrontendTest
- MAGETWO-54412 [MERCHANT] Integrity Constraint Violation when creating orders #4580
- MAGETWO-58730 [Github] Incorrect province code sent on Checkout to UPS #6564

Tasks:
- MAGETWO-59648: Make ability to run js test on Bamboo

- Add translation for timeout error message

Bug
- MAGETWO-59086 [GITHUB] Credit Card capture not associated with the Authorization since upgrade to 2.1.1 #6716
Story
- MAGETWO-58251 PayPal Best Practice to Separate Saved Tokens
- MAGETWO-59073 PayPal Team Comments After Demo: PayPal Vault Shown on Orders in Backend