(bug 43814) link to Special:SetLabel from EntityView

- the label-edit-button should link to the SetLabel SpecialPage
when JavaScript is turned off

Shifted from use of getFullURL to getLocalURL.

Change-Id: Ibfbe630f693892979a503d797079ace12e8fb1c4
Merge "(bug 43814) link to Special:SetLabel from EntityView"