Using exact arithmetic

This release incorporates a rewrite of all unit definitions to use exact arithmetic [thanks to André Sá].

Additional units of time

This release adds unit definitions for minute, day, week. Thanks to Andre Sa for the contribution.

Export unit type

This release adds an export of the unit type definition in order to allow pattern matching in other modules.

with-units dependency fix

This release adds a component dependency of with-units on unitconv.

Compatibility with CHICKEN 5

This release adds support for CHICKEN 5.

More robust scale factor comparison in unit-equal?

This release alleviates a situation where the scale factor equality test in unit-equal can fail because of floating-point number issues.

Exporting dimint

2.7

added release 2.7