[Mavericks] Extend functional tests coverage

Tasks:
- MTA-3896: Add variation for Place order via Payflow Pro with success AVS ZIP verification
- MTA-3898: Add variation for Place order via Payflow Pro with success CVV verification
- MTA-3895: Add variation to CreateOnlineCreditmemoTest with PayPal Payflow Pro
- MTA-3900: Create auto test to Refund an order placed through Braintree with full capture
- MTA-3952: Refactoring comments history block in Order module
- MTA-3901: Add variation for Partial Refund an order placed through Braintree with Partial capture

Bugs:
MAGETWO-60185 Remove distinction in http/https for requirejs-config.js
MAGETWO-60611 [Magento Cloud] - Static files not being generated correctly on prod(Race condition in merging files)
MAGETWO-59322 Incorrect scope filter caching in UI grids
MAGETWO-55393 [Github #5636] Many storeviews break the page

[MPI] bugfixes

- MAGETWO-63042: Make price error aggregator messages more detailed

[EPAM] Added default price field to CatalogProductSimple fixture and updated date source to use timezone

- Copyright is updated.

[East] Bugfixes

- Copyright is updated.