Add a simple test of recovery -- on timed runs, the monitor thread
optionally indirects through a NULL and core dumps, then we verify
the object.
Clean up run reporting.
Add configuration options for log archive and pre-allocation, currently
at 50% each.

Turn on logging all the time in the recovery test script.

Explode the configuration snprintf() for wiredtiger_open.

The test to check for configuration buffer overrun in WT_SESSION.create
was wrong, fix it.
Merge pull request #1476 from wiredtiger/format-recover

use format as a simple recovery tester