WriteAhead v0.0.51

• Upgrade interrupt to 11.0.0-alpha.26.
• Upgrade operation to 6.0.0-alpha.13.
• Upgrade transcript to 0.1.7.
• Upgrade fracture to 0.3.0-alpha.74.
• Upgrade destructible to 7.0.0-alpha.72.
• Upgrade extant to 2.0.0-alpha.5.
• Upgrade sequester to 2.0.0-alpha.3.
• Upgrade turnstile to 6.0.0-alpha.83.
• Update LICENSE for current year.

Closes #60.