Upgraded BatchBundle to dev branch
Added upgrade documentation
Fixed spec
Merge branch 'master' into task/batch_bundle_0.2

Conflicts:
	CHANGELOG.md
	composer.json
Switched to stable version of batch bundle
PIM-2517 : add missing parameter request in ProductController editAction
Merge branch 'master' of github.com:akeneo/pim-community-dev
Merge branch 'master' into task/batch_bundle_0.2
Merge pull request #1210 from akeneo/task/batch_bundle_0.2

batch bundle 0.2 upgrade
PIM-2956 : introduce a new locale switcher template
Merge pull request #1281 from akeneo/PIM-2956-locale-switcher-extensibility

PIM-2956 : introduce a new locale switcher template
PIM-2960: Update CHANGELOG.md
Merge branch 'master' into PIM-2960

Conflicts:
	CHANGELOG.md
PIM-2960: Fix tag