Merge pull request #1857 from akeneo/PIM-3446

PIM-3446: limit the warning display to 100 in import/export
Preparing version 1.2.14
Merge pull request #1860 from akeneo/1_2_14

Preparing version 1.2.14
PIM-3452: Remove useless code
Merge pull request #1863 from akeneo/PIM-3452

PIM-3452: Remove useless code
PIM-2613 : use product value interface to replace abstract class
PIM-2613 : use product interface to replace abstract class
PIM-2613 : use product price interface to replace abstract class
PIM-2613 : use metric interface to replace abstract class
PIM-2613 : use completeness interface to replace abstract class
Merge pull request #1868 from akeneo/PIM-2613-product_value_interface

PIM-2613 : prefer interfaces than abstract classes for models
Update .travis.yml

Add Slack notifications
[CrowdIn] Updated translations
Merge pull request #1871 from nono-akeneo/crowdin/1.2-2014-12-08-04-00

Update translations from CrowdIn
PIM-3473: Fix date picker limit
Merge pull request #1872 from akeneo/PIM-3473

PIM-3473: Fix date picker year range selection over next year
Merge branch 'PIM-3473' into PIM-3473-merge

Conflicts:
	CHANGELOG.md
	src/Pim/Bundle/CatalogBundle/Version.php
	src/Pim/Bundle/EnrichBundle/Resources/translations/messages.it.yml
Fix date range on filter
Merge pull request #1873 from akeneo/PIM-3473-merge

merge to master PIM-3473, PIM-3452 and Crowdin
[phpDoc]: fixed reference to Product (should be ProductInterface) in ProductManager and ProductRepositoryInterface