After a failed kdb5_util load, make a subsequent load operation work
by removing the remnant temporary files after obtaining a lock.  To
make this safe, the private contract for temporary DB creation and
promotion had to be altered, along with many of the DB2 internal
helper functions.


https://github.com/krb5/krb5/commit/3e0113994526883a9fefad307177c4ff6c292e4a
Commit By: ghudson
Revision: 24511
Changed Files:
U   trunk/src/include/kdb.h
U   trunk/src/kadmin/dbutil/dump.c
U   trunk/src/plugins/kdb/db2/kdb_db2.c
U   trunk/src/plugins/kdb/db2/kdb_db2.h