This change allows (for example) to hook a blobserver and an indexer
together in a way similar as they would be in a default Camlistore setup.
This is particularly useful to setup tests that require a realistic
indexer, without having to create a heavier test with e.g. test.World.
This actual goal of this change is described below. I kept these changes
together because the one described below illustrates the need for the
synchandler changes.
pkg/index/stress/: stress test the indexer with more data
The goal of these benchmkarks is to help us compare the various sorted
implementations, so we can pick the most efficient one as a default.
A second, harder, goal would be to add tests that help us estimate the
reliability of the various kv stores, again so we can rule out the buggy
ones, or help fix them.
Change-Id: I8a1fe50398a4ba09c03786502b68b6c2599e5984
