[MERGE] KnitIndex tests/fixes/optimizations

[John A Meinel]

John Arbash Meinel has voted +1.
Status is now: Semi-approved
Comment:
This is probably going to conflict a little bit with the latest changes, since it contains whitespace fixes, etc.

But I think the general idea is sound, and I'd like to see it get merged.

For details, see: http://bundlebuggy.aaronbentley.com/request/%3C45700C04.6040706%40hlabs.spb.ru%3E