Simplify testing for basic types during configuration: we're running on
C99 machines as far as we know, and doing the tests creates problems.
Copy the WiredTiger.basecfg and WiredTiger.config files as part of doing
a hot backup, they may be required to open the backup in a new place.
Use a separate lock file for per-process locking instead of the standard
"WiredTiger" file, the byte lock will prevent a copy during hot backup on
some systems.