Formulae

- Revert changes back to v0.1.2

- Revert changes back to v0.1.1

- Added `prop()` function to handle response terms that a proportion computed from two variables (40)
- Categorical responses can contain more than one level (40)
- Added `binary()` function to convert numeric/categorical variables into 0-1 variables (41)
- Modified `C()` to make it simpler to obtain categorical variables and manipulate their levels (41)
- Added `offset()` (42)

Maintenance and fixes

- Fix group-specific effects matrix shape (35)

Documentation

- Add a Getting started section to webpage and remove that content from README.md (36)

New features

- Factor of group specific effect can be an interaction now (31)

Maintenance and fixes

- Full interaction does not result in shared components anymore (30)
- Add information about levels to interaction terms (33)

Deprecation

Documentation

- Added **Internals** section to documentation (28)

New features

Maintenance and fixes

- Nested stateful transofrmations now work as expected (19)

Deprecation

Documentation

- Added a changelog file to track changes (20)
- Formulae now has a github pages website (21)