pent v0.2

Minimal overall functional changes from v0.2rc1, save for:

1. Swapping the semantics of 'decimal' and 'float' numeric types, and

2. Fixing the optional-line behavior.

See CHANGELOG.

pent v0.2rc1

Alpha release, for easier testing while drafting initial documentation.

pent v0.1

Alpha release, to allow for simpler internal and external testing.