More coding

Some more writing done, although Nano looks like it's turning into a set of linked short stories more than a novel. Trying to code and write at the same time is really cutting into my time.

The hatchery now has a manual "remove creatures" option for both magistream and Dragon Cave, and a check for Dragon Cave's little trees. There are a few changes under the hood to give it a few more automatic admin features (validation mostly), and I have a very long list of changes and nice-to-haves to add in from my testers.

I also need to add a thank you page for them - without them it would not be at a point where I could add it to my lenses...