Hygiene: WikiDataApi::getClaims

Change-Id: Ibee6fc573610da14d149add893b87d5ca459111c
Hygiene: Move DOM handling out of postRender

postRender in theory can be run multiple times. We only want to add
this to the DOM once.

Change-Id: I6096960578846f1c264dc8bcc65ca65f2002e028
Merge "Hygiene: WikiDataApi::getClaims"
Merge "Hygiene: Move DOM handling out of postRender"