v0.13.0.0

Bump version to 0.13.0.0

v0.12.1.0

• GHC 8.4.1 support
• Update 'base' dependency bounds
• Add Semigroup instance to the Prod type

Update dependency version bounds

Now works with GHC 8.2.

Add Generator module

Generator: Remove INLINE pragmas

This is not so important since there's no specialisation going on here
anyway.

v0.11.0.1

Bump version to 0.11.0.1

v0.11.0.0

Bump version to 0.11.0.0