Subroutine 0.9.8

Added

• A workspace can send what happens in it to music software, over OSC - a short message each
  time an item is filed, finished or commented on, or a milestone closed, which software such as
  Subsequence can answer with a sound. Most people will never need it: nothing is sent until a
  workspace's administrator says where to send, in the last section of the workspace's settings
  page. Every event goes as it happens and nothing waits for it, titles go only if you turn them
  on, and nothing goes from a private project. docs/osc.md has the addresses and
  what each message carries.