Fix createitem to not leak memory
scripts/create-items: spawn anvils too
rename scripts/slayrace -> exterminate
Merge branch 'master' of github:jjyg/dfhack
scripts/exterminate: nicer error message on invalid race
scripts/masspit
update doc
autofarm: minor tweaks
Fix soundsense-season printing error messages in worldgen.
Fix the search plugin crashing the military screen.

The cause of the crash is that the right list is used for multiple
different things in different pages, so when cleaning up after a
page switch it is not acceptable to mess with it in any way. However
the search plugin changed its length, thus causing a crash if the
new contents were shorter than the original candidate list.
Make createitem create shoes in pairs (as well as gloves)
Merge https://github.com/quietust/dfhack

Conflicts:
	NEWS