We might tweak the parameters yet, and I want to add a bunch more
tests, but this is a major relief for me. I've been reluctant to
put too much data into my personal Camlistore instance until I
figured out how I wanted the file chunks to split.
This also simplifies (deletes) a fair bit of code.
Change-Id: I35c38cc5d39a8a43e3f62445434f8d7fd5de5d17
Brad Fitzpatrick