MBS-6297: Enable more editing links in area sidebar

All editors are able to perform some operations on area's - viewing annotation
history and creating non area-area or area-url relationships. This commit
loosens the conditions for showing of these links so that they are shown to all
editors, not just location editors.
Merge branch 'mbs-6297' into beta

* mbs-6297:
  MBS-6297: Enable more editing links in area sidebar