Merge pull request #273 from magento-jackalopes/jack-kanban2-pr

Fixes for:
    MAGETWO-56868 Cannot save a product with images for the second time
    MAGETWO-54355 [Github][PR] Bugfix: Unable to activate search form on phone #3770
    MAGETWO-54580 [Github][PR] added partial fix for issue #2617. #3688
    MAGETWO-53808 [Github][PR] Fixed post var name for update attributes #4011
    MAGETWO-55950 Automate Create new Email Template test
    MAGETWO-56197 Write functional test for Account sharing settings availability