Minecraft now uses minecraft:sign as its id for signs, but also uses
Sign for older versions or chunks that have not yet been updated.
Change the genPOI sign wrangling code and the documentation to reflect
this change.
Fixes#1340.
This code is correct, but doesn't work correctly with signs since they got JSON text formats in 14w25a. I will try to create another PR with an improved sign function tomorrow, but it's turning out to be complex, so for the moment, I'll stick with this tip on making imports work.
* Added paragraph and example about returning tuples from a filter
(Issue #859)
* Added section about manualpois
(Issue #858, Issue #869, Issue #598)
* Fixed a typo in the FAQ
* Added logging to file to the FAQ
(Issue #871)
