Paxos v19.0.0-alpha.18

• Merge master.
• Upgrade avenue to 0.6.18.
• Upgrade whittle to 0.0.6.
• Update LICENSE for current year.
• Sketch of Rust shaper.
• Start of Rust implementation.

Closes #479.

Paxos v19.0.0-alpha.17

• Upgrade whittle to 0.0.5.
• Upgrade avenue to 0.6.17.
• Convert README.md to Edify.

Closes #478.

Paxos v19.0.0-alpha.16

• Upgrade happenstance to ^13.0.0-alpha.0.

Closes #477.

Paxos v19.0.0-alpha.15

• Remove Ascension dependency.
• Upgrade ascension to ^3.0.0-alpha.7.

Closes #476.

Paxos v19.0.0-alpha.14

• Upgrade ascension to ^3.0.0-alpha.6.

Closes #475.

Paxos v19.0.0-alpha.13

• Change test file suffix.
• Change Monotonic to base 10. Closes #472.
• Compare abitrary length promises.

Closes #474.

Paxos v19.0.0-alpha.12

• Upgrade avenue to 0.6.16.

Closes #471.

Paxos v19.0.0-alpha.11

• Upgrade avenue to 0.6.15.
• Upgrade whittle to 0.0.3.
• Upgrade ascension to ^3.0.0-alpha.4.
• Upgrade extant to ^2.0.0-alpha.2.

Closes #469.

Paxos v19.0.0-alpha.10

• Upgrade avenue to 0.6.14.
• Upgrade whittle to 0.0.2.
• Build with Node.js 16 on GitHub Actions.
• Build with Node.js 16 on Travis CI.

Closes #468.

Paxos v19.0.0-alpha.9

• Upgrade avenue to 0.6.13.
• Upgrade extant to ^2.0.0-alpha.0.
• Remove caret pin from Avenue.

Closes #467.