- fix issues with code review, add phpdocs and restore BiC, rename/remove methods

- fix issues with code review, add phpdocs and restore BiC, rename/remove methods

- fix year copyright

- reduce dependency coupling count

- reduce dependency coupling count

- reduce dependency coupling count

- use clone instead of non shared object because of performance improvement

Bug fixes:
* MAGETWO-61358: Wrong Path of Target csv Files (csv::class typo)
* MAGETWO-61368: [Github]Minicart not updating after sign in #7500
* MAGETWO-61092: Error css in customer account with Toolbar-amount and mobile design #7437

Tasks:
* MAGETWO-61261: Cover with Js unit test changes introduced in the scope of bugfixing

[Mavericks] Extend functional tests coverage

[MPI] Fix PayPal Express Checkout place order method

# Conflicts:
#	dev/tests/functional/tests/app/Magento/Checkout/Test/etc/di.xml

[East] Bugfixes

[Folks] Automated tests

[SOUTH] Bugs:
- MAGETWO-52925 Simple child product without a special price still shown as "was (original price)" #4442 #5097 #6645 - for mainline
- MAGETWO-60098 Configurable product option price is displayed incorrectly per website
- MAGETWO-56793 [GITHUB][PR] Fix Magento\Review\Model\ResourceModel\Rating\Option not instantiable in setup scripts #5465
- MAGETWO-58078 [FT] CreateProductAttributeEntityFromProductPageTest fails
- MAGETWO-61725 [GITHUB] Improve address save flow to allow to use custom validators #7552

[Mavericks] Extend functional tests coverage

Story
- MAGETWO-59624 [2.2 port] Split Deployment - scrub sensitive data - override config values by environment
- MAGETWO-61498 Cloud deployment permissions - Cache Managament
- MAGETWO-61502 CLI Improvements: Cron Install/Update
Task
- MAGETWO-62491 [PR] Delivery of stories (sprint 3)