Engine v0.34.0

Changed: a workflow's page (#116)

• Pause and Resume sit beside Run on a workflow with a schedule, one click,
  as on the Workflows list.
• When it runs next is a number in the strip: "in 12m" and the UTC time,
  "paused" or "manual".
• A one-step workflow shows its step, not a canvas holding one box: its
  command and what it runs in, beside its year of runs.
• The head says, in one line, whether the schedule runs, the project, the cron,
  the size of the graph and the tags.
• The workflow's runs no longer repeat its name on every row.

No migration. No configuration changes.