1.5.8!

This is more of a "I've been working on this for a while and need to cut a release somewhere" kind of release. A summary:

- Some menu-related accessibility changes in curses mode to help screenreaders
- Fleeing creatures may turn to fight when cornered
- Added creature templates, which allow specifying similar creatures from a single entry in the game XML - these will have basically the same stats but different descriptions, symbols, etc. Flavour!
- Wooden items can be made into pulp
- Added a setting to allow always stopping on automove
- Creatures may decide to kick now, especially if doing so might insta-kill the player
- Added a setting to allow excluding very heavy items from autopickup
- Various new creatures
- A small memorial in Gnordvar for a friend of mine who passed
- Unimplemented skills are now disabled and can't be improved
- Deities might grant knowledge of divine magic after prayer
- Lots of bug fixes, and a number of new creatures!