Changed
- The `Individual` class no longer initializes the `child`, `income`,
`asset`, and `expense` attributes, but there are `objects` blocks in
basic-questions.yml that will initialize these attributes.
- The `Organization` class no longer initializes the `office`
attribute, unless `offices` is provided as a keyword parameter
during object construction.
Added
- Interview tags system and the `session_tags()` function.