0.2.9

• Remove redundant type-class constraints.
• Add tests.
• Add HasDigit lens.
• Add papa dependency.

0.2.8

• Add (/+/) function.

0.2.7

• Add mantissa function for digits.

0.2.6

• Use Integral not Int.
• Digits data type (zero or many digits) and associated functions.

0.2.5

• Change parser to handle non-empty list.

0.2.4

• More Digit parsers.

0.2.3

• Digit parsers.

0.2.2

• Modulus operations.
• digits function.
• Fix tests.

0.2.1

• Include digit parsers.

0.2.0

• Update to use digit prisms.