Unify doc links

We've changed a bit of names here. This makes the documentation more
consistent by referencing the newer names.

Change-Id: Ib0a65ff68f0e7bb55edd6873c7cd15de73072563
Reviewed-on: http://review.couchbase.org/42063
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
Reviewed-by: Volker Mische <volker.mische@gmail.com>