BIND 10 #3156: Create separate base-classes for the Finite State Machine logic in NameChangeTransaction class

[BIND 10 Development]

#3156: Create separate base-classes for the Finite State Machine logic in
NameChangeTransaction class
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                   Reporter:  tmark  |                 Owner:
                       Type:         |                Status:  new
  enhancement                        |             Milestone:  New Tasks
                   Priority:  low    |              Keywords:
                  Component:  dhcp-  |             Sensitive:  0
  ddns                               |           Sub-Project:  DHCP
               CVSS Scoring:         |  Estimated Difficulty:  0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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 d2/NameChangeTransaction class contains a simple finite state machine
 implementation that could be made more general purpose if refactored out
 into its own class or classes.  This would also unclutter
 NameChangeTransaction, which is D2-specific.

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Ticket URL: <http://bind10.isc.org/ticket/3156>
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