Remove unused db.api.floating_ip_set_auto_assigned

Change-Id: I5a2be6dd733a4bc092e4658d8010cc3a5eb0d6a3
Enable hard-reboot on more states

Instance may stuck at some status, so enable hard-reboot on more
status to enable user to reset instance when it gets in some sort
of bad state.

Change-Id: I99200d44a179705d89c9912a7261fe40100b535b
Closes-Bug: #1376384
Catch NotImplemented nova exceptions in API extension

Catch currently uncaught NotImplemented nova exceptions
in floating_ip_dns and explicitly convert to HTTPNotImplemented
errors. This avoids tracebacks in the log files.

Change-Id: Idc8d9437920ab0ffcd6cb49db73dae63bcabab0e
Merge "Enable hard-reboot on more states"
Merge "Catch NotImplemented nova exceptions in API extension"
Merge "Remove unused db.api.floating_ip_set_auto_assigned"