Three Dollar Quill

It's kind of late again, but I've got this. I made the minimal changes required to rework the semantic drift deserialization. Because it's late again, I haven't tested it, or indeed gotten the data file into a state where it can be tested, but hopefully all that's left now is a relatively mechanical process.

Once I have this working, then I should be following up thus:

• Take notes on how I think I'm going to implement grammaticalization.
• Clean up all of the Python code I've written to get this working.
• Figure out how to clean up and divide up the sound changes, so I can have the sound changes look like they weren't written by a bunch of enthusiastic raccoons with a surprising level of linguistic knowledge.

Anyway, I'll hopefully get to work on that in a day or two. For now, bed is calling.

Good night.