Function editor verb options should come from server

Originally I was going to propose merely that the function editor load the list of preposition options from the server.

Then I thought the same should be true for the choices for dobj and iobj (I am thinking in particular about introducing a distinction between "any matchable object" and "any random text").

Better still that whole row of controls be served up by the database, so the fields could be changed appropriately if we write a more sophisticated command parser.

And taking this to its logical conclusion: really, all the editors ought to be loaded from the DB, so they can be entirely suited to whatever kinds of data/objects are stored there.