Bump to 1.25.0.pre
Bump to 1.25.0
Gracefully terminate child jobs when called with TERM.
Add more logging for when jobs are completed and workers are shutting down.
Add better logging for when signals are received.
Fix logging to use log method.
Bump version.
Merge branch 'gracefully_exit_on_1.25.0' into 1-x-stable