Backport: Fixed load order issue when setting tagged values to omit the changeNote field from the IVersionable behavior.
Backport: Removed related_items index and RelatedTasks tab.

Conflicts:
	opengever/document/profiles/default/metadata.xml
Merge pull request #193 from 4teamwork/lk_backport_3.1.x

Backports for release 3.1.3