Let scripts make their own decisions about sleep.
Add 2-letter farm codes.
Calculate least recent farm position.

Instead of a hard-coded "8". or "7".
#each not needed after #times.
Use do/end instead of braces, more English-like.
Use new travel methods.
Use newer numbers and methods for Wishing Fountain.

Update readme to match (mostly).
New craftshop layout and navigation.
Add png for farm.yaml wiki page.
Move farm_codes to top for prominence.
Replace explicit #sleep with argument to #click.