Fix missing format specifier in ImagePropertiesFilter log message

Commit a52259e introduced some changes to debug log messages in the
ImagePropertiesFilter but with that came a bug due to a missing format
specifier.

Closes-Bug: #1253875

Change-Id: Ic60b7ba179bd43b80c500be084a1809b6b0b32ca
Bump to sqlalchemy-migrate 0.8.2

This allows us to drop some unsightly
0.7.3 patching and also avoids potential
issues in using 0.8.1 which had a bad
release version string (it was called '0.7.3dev' by mistake).

This will require a requirements change here:

 https://review.openstack.org/56662

Change-Id: I5f80dfc07f8256716d025002fc1a1f47e58b2142
Closes-Bug: 1251700
Change ConductorManager to self.db when record cold_migrate event

In conductor manager, when cold migrate an instance, conductor
manager will record event of cold_migrate.

When record this event, conductor manager pass ConductorManager but
not self.db as parameter for compute_utils.EventReporter(), as we
can access the db directly from conductor manager so going through
ConductorManager as a proxy is unnecessary.

Change-Id: Ic52228c2550294c2df37d10d36637e4d0e3a1a30
Remove duplicate BuildAbortException block

Somehow, most likely due to a bad rebase, there were two
BuildAbortException blocks in the same section.  This removes one.

bp remove-cast-to-schedule-run-instance

Change-Id: I29684e222f18e6da280ed181447750525d878423
Merge "Remove duplicate BuildAbortException block"
Merge "Fix missing format specifier in ImagePropertiesFilter log message"
Merge "Bump to sqlalchemy-migrate 0.8.2"
Merge "Change ConductorManager to self.db when record cold_migrate event"