Facilities and Fields

[GregS]

Similar to the last update, I've just posted a batch of changes that split "fields" into "facilities" and "fields". This is a much smaller update, and comes with very few visible changes for most users. (Ever since Leaguerunner, the code always had the concept of a "parent field", but it was really awkwardly handled and didn't reflect the database structure.)

This post is mostly just to let you know that it happened, so if you see anything strange that might be related to this, please let me know ASAP. Also, there's a couple of things on the TODO list which were waiting until after this happened (such as field pop-ups and the "map of all fields"), so those might be completed Any Time Now.