PIM-3448: add a method to retrieve attribute groups from a list of attribute codes
Merge pull request #1897 from akeneo/PIM-3448

PIM-3448: add a method to retrieve attribute groups from a list of attri...
PIM-3377: Fix cs for static analysis
Merge pull request #1901 from akeneo/PIM-3377

PIM-3377: Fix cs for static analysis
PIM-3420: remove update guessers on attributes and attributes option to fix the versionning memory leak