0.63.0

Changed — may break callers

• drive now writes the shared store at version 57, and an older WireCat CLI refuses it until it is upgraded.
  A memo, mail or other WireCat CLI on the same store reads it again once it is updated too: run <cli> upgrade
  for each. The other way round matters more: a memo already on the new store version stopped this drive from
  opening it, and this release reads it again.
• memories add --supersedes retires the old memory only once the owner confirms the correction. drive writes
  every memory proposed, so the old memory stays in effect until then.

Fixed

• Updated cli-core to 0.608.0.