EDIT

fix #7715: label for sources of descriptions and descriptionelements are changed to sources

ref #7726 Shorten label of nomenclatural cache

ref #7415 fix NPE in ExternalLinksElement

ref #7728 Removed unused toolkit member

fix #7728 Fix initialisation of form toolkit in DateElement

ref #6850 Fix label for null value

fix #7717: color of end fields in partial element are grey if disabled

ref #7717: parse field should not be updated if it is the event source

fix #7726 Change label of abbrev cache

cleanup