EDIT

revert the changes in MANIFEST.MF for richtext

smaller changes in AbstractFormSection

add nebula richtext to target plattform

ref #6905, #6597 Restore details and supplemental view

ref #6905, #6597 Fix potential NPE

ref #6905, #6597 Adjust visibility

ref #6905, #6597 Fix potential NPE

ref #6905, #6597 further improvement on selection evaluation

ref #6905, #6597 refactor selectionChanged() method

ref #6905, #6597 Allow saving of editor when view is active