PIM-2948: working editable grid
PIM-2948: localized grid
PIM-2948: Index optionValue by locale for PropertyAccessor
PIM-2948: CS Fixes and use of Normalizer instead of Serializer
PIM-2948: sortable collection
PIM-2948: cleanup dead code
PIM-2948: updated behat scenarios
PIM-2948: optimizations and glitches
PIM-2948: fix pr comments