Move reference tool into Cite menu, and language into styling

This puts reference insertion and editing tools into the same menu (yay) and
applying-annotations-to-text tools into the same menu, too.

As part of this, I'm re-labelling the generic reference tool to "Basic" (now
that it has some context for users).

Change-Id: I8b8196d3c2e40237d61c8491ab30e737b82597d6
Merge "Move reference tool into Cite menu, and language into styling"