Ticket 47389 - Non-directory manager can change the individual userPassword's storage scheme

Bug Description:  If password syntax checking is off, it is possible for a privledged user
                  to change the password storage schema when updating a password.

Fix Description:  Move the existing "scheme check" outside of the syntax check statement block.

https://fedorahosted.org/389/ticket/47389

Reviewed by: richm(Thanks!)
Ticket #47400 - MMR stress test with dna enabled causes a deadlock

Bug description: Under the heavy add/delete posix user entries,
dna_update_config_event causes a deadlock.

Fix description: dna_update_config_event starts transaction
before updating the shared config entry to avoid the deadlock
situation.

https://fedorahosted.org/389/ticket/47400

Reviewed by Rich (Thank you!!)
Ticket 47396 - crash on modrdn of tombstone

Bug Description:  a client modrdn operation on a tombstone entry can crash the server

Fix Description:   client modrdns and modifies on tombstone entries should not be
	accepted. Tombstones aer internally kept for eventual conflict resolution, normal
	clients should not touch them.
	an exception would be to force purging of tombstones or a kind of "undo" for
	a delete, which could resurrect a tombstone, but this is not in the scope of this ticket

https://fedorahosted.org/389/ticket/47396

Reviewed by: Rich, thanks