Milestone soon (release n/a)

This is for tickets that can't be resolved by releasing a new version of Tahoe that contains a fix: things that don't fit into the Tahoe release schedule. Examples include improvements to Trac, to mailing lists, and to non-Tahoe code, unless these are changes that need to be made in conjunction with a specific Tahoe release.

(The due date is a hack to ensure that milestones are sorted correctly in queries.)