Ticket 47641 - 7-bit check plugin not checking MODRDN operation

Bug Description:  7-bit check is not being performed on modrdn operations.

Fix Description:  The "superior" DN was not properly being checked/set, and
                  caused the 7-bit check to be skipped.

https://fedorahosted.org/389/ticket/47641

Reviewed by: nhosoi(Thanks!)
(cherry picked from commit ddbec8c4cea448b775e3848c328cb86b238fe35f)
Ticket 47638 - Overflow in nsslapd-disk-monitoring-threshold on 32bit platform

Bug Description:  On 32bit platforms 3000000000 overflows when retrieving the value
                  from the dse.  The value was internally processed correctly, but
                  the value returned to the client was incorrect.

Fix Description:  Created a new CONFIG_LONG_LONG config value type, and the associated
                  slapi_entry_attr_set_* function.

https://fedorahosted.org/389/ticket/47638

Reviewed by: rmeggins(Thanks!)