sjjaffe/TodosApp @ ecb661219c4023d81f167800faac295a36ac2de7

Sam Jaffe ecb661219c refactor: rename Group => Category		8 月之前
..
CodableArray.swift	ecb661219c refactor: rename Group => Category	8 月之前
StubDocument.swift	3fe88fa02b feat: add ability to save a snapshot or arbitrary file path	8 月之前