v0.10.1

Allow anthologies using the "novel" class to include front matter.

Add an option -a/--anthology-title to set the title of the anthology, which will be included in the front matter.

Changes configuration file format for anthologies. Projects started on a previous version will require manual changes before they can be processed with this or later versions. What was previously just a list of stories is now:

anthology:
  title: Anthology Title
  author: Author Name
  stories:
  - List as before