Update makebumpver to include flags on first request

python-bugzilla has been complaining that it needs to refresh the object
because it didn't get the flags the first time. This switches to using
.getbug instead of .query and adds the flags to the returned data for
each bug.

This also quiets down some logging from urllib3 that was making it hard
to read the results of the bugzilla checks.
New version: 0.61.0.2