- Add copyright headers to files that did not already have them
- Update the year to the last year the file was modified in files with
existing headers.
- Have the job manage the indent of each of its stages
- Switch output_processor to using indentcontext
- Move the "Configuring augmentations" log line into Job -- the
rest of the stages are logged there, but this was done by the
Executor for some reason.
Output processor names are converted to identifiers when they are
loaded. Ensure the same thing happens when looking up installed output
processors with get_output_processor().
