While the current changelog generator is useful, it is interactive,
which makes it hard to extract the changelog output from the standard
output of the script. Provide a noninteractive mode, which specifies
sections but doesn't categorize any of the items. This can be used
to store the output in a file and allow the user to edit it with the
editor of their choice. This file can then be programmatically inserted
into the various places the changelog entry is required.
