662ae3777c
Previously the mqtt topic generation always assumed a build_change was present. However there are some cases where the isn't a build_change in the metadata, like periodic, post, and release jobs. This commit handles those edge cases so it uses the build queue in the topic instead of the build_change. If that doesn't work the topic is just the project. Change-Id: I26dba76e3475749d00a45b076d981778f885c339