Sue found the reason the open files count keeps climbing.
unused variable.
Report the version we want on failure.
Add support for kvs_truncate (I'm leaving the slow session-level truncate
in place, it doesn't cost much).

Rename session-level functions to avoid name collisions.

Upgrade to KVS 2.8.
whitespace
lint/whitespace
I'm currently doing all runs of memrata with /dev/loop0.