Suppress section edit links with action=render

action=render is often used to pull the rendered HTML of an article
for inclusion in a different context. More often than not, the edit
links are not desired in that context.

Bug: 19415
Change-Id: Iab02cbd42f2f93f0f5264a74691ae1b84f296f12
Merge "Suppress section edit links with action=render"