PIM-1532 Split value and unit of metric value during csv export
PIM-1532 Merge value and unit of metric value during csv import
PIM-1532 Forced option family of the MetricTransformer
Fixed cs
PIM-1532 Updated changelog
Fixed link
PIM-1532 Removed useless constructor
PIM-1532 Parameterized metric attribute guesser
Merge pull request #540 from akeneo/feature/pim-1532

PIM-1532 (Bonus) Split and merge value and unit of metric values during export/import