0.3.2.0

Add NFData instance.
Implement extended GCD.
Rename PolyOverFractional to PolyOverField.
Add integral with Semiring-based interface.

0.3.1.0

Implement Karatsuba multiplication.
Add IsList instance.

0.3.0.0

Implement sparse polynomials.
Add GcdDomain and Euclidean instances.
Add functions leading, monomial, scale.
Remove function constant.

0.2.0.0

Fix a bug in Num.(-).
Add functions constant, eval, deriv, integral.
Add a handy pattern synonym X.

0.1.0.0

Initial release.