MC-94: Remove attribute, attributeSet and option jobs
MC-94: Update CHANGELOG.md
Merge pull request #325 from akeneo/MC-98

MC-98: Inject normalizers in NormalizerGuesser
Merge branch 'master' into MC-94

Conflicts:
	CHANGELOG.md
MC-94: Remove category step from structure job
MC-94: Update changelog.md
Merge pull request #324 from akeneo/MC-94

MC-94: Remove attribute, attributeSet and option jobs
Merge branch 'master' into MC-126