[OEM-109] implemented draft mode functionality.
[OEM-109] draft mode bugfix and warning banner for drafts.
[OEM-109] updated delete view and added api method canUpdate()
[OEM-109] request deletion changes
[OEM-109] focus textarea on page load
[OEM-109] cancel delete bugfix
Merge branch 'hotfix/OEM-109' into release/1.6

Conflicts:
	models/Element_OphTrConsent_Type.php
	views/default/delete.php
	views/default/view.php
[OEM-109] added form declaration
[OEM-109] fixed form
Merge branch 'release/1.6' into develop