Implementation
Merge remote-tracking branch 'upstream/develop' into feature/vp-195-document-heading-overview-title
Merge remote-tracking branch 'upstream/develop' into feature/vp-195-document-heading-overview-title

Conflicts:
	src/Vivo/CMS/Model/Document.php
Merge pull request #184 from miroslavhajek/feature/vp-195-document-heading-overview-title

Feature/vp 195 document heading overview title