Previously, articles written by Ersatz Scrivener were represented in
the data model by having a NULL character id. This had several awkward
consequences, such as therebeing no real way to distinguish Ersatz
articles from different players without doubling up on foreign keys
whenever there was a character reference, because there would need to
be a user reference as well.
Using a flag on the article itself is a much cleaner solution. There is
no longer a need to have both character and user FKs. Ersatz-ness is
still a special case, but one easily tracked on articles without
changing how basic objects of the game relate to each other. Ersatz
articles can be treated differently in the stats just as easily while
still being subject to character-specific rules like index assignments.
These settings have now been reintegrated into the new code, so we can
remove them from the old code to make it easier to audit what has and
hasn't been converted yet
Unlike the player and setup settings, the form here has a variable
number of inputs, so we use a blank row to allow expanding the index
set and allow deleting by clearing out the index type
This somewhat duplicates loading the objects into flask.g, but doesn't require
the lexicon route decorators. Additionally, lazy-loading these objects can save
the occasional db call, and for the current membership this is more convenient
than having to add a second decorator or staple it to the lexicon loading.
