)

* bug_fixer.py converts bug numbers in release note YAML files to a list of bugs.

* Fix duplicate "bug" keys in old notes.

* Update release note template loader to work with bugs from lists.

Work with YAML files that already have the bugs in a list rather than
the current {bug: 1234567, bug2: 2345678} formatting.

bugs:
- 1234567
- 2345678

or
bugs: [1234567]

* Update gather_notes.py to handle reformatted YAML files.

* Convert bug numbers in YAML to lists.