PIM-1852 : drop composer.lock and fix a conflict with doctrine version
PIM-1852 : fix version of gaufrette + add composer.lock in .gitignore
PIM-1852 : fix edit_user scenario
PIM-1852 : update the computation of the digest for the rest api
(related to wsse update)
PIM-1852 : update changelog
Merge branch 'master' into PIM-1852-freeze-deps

Conflicts:
	CHANGELOG.md
PIM-1852 : update gaufrette and apy js form validation deps
Merge branch 'master' into PIM-1852-freeze-deps
Merge pull request #702 from akeneo/PIM-1852-freeze-deps

PIM-1852 : drop composer.lock and freeze deps versions