PIM-2950: Replace buttons by icons
Add styling for secondary buttons (btn-info)
PIM-2950: Update less file to make icons clickables
PIM-2950: Change variables name and method to hide/show icons
PIM-2950: Clean code using href
PIM-2950: Update behat scenarios
PIM-2950: Update CHANGELOG.md
Merge pull request #1356 from akeneo/PIM-2950

PIM-2950: Harmonize view buttons
Fixes Class name change and constructor parameter
PIM-3057 : update changelog
Merge pull request #1353 from akeneo/PIM-3029

Add styling for secondary buttons (btn-info)
Merge branch 'master' into fix/direct_mongodb_writer
Removed non clearable entities from writers