Renames, refactors, and occasionally rewrites many of the arms used
within the application. Splits +sh into +sh-in and +sh-out, improves
naming for rendering cores, moves arms around for better organization,
and adds descriptions to all arms.
Brings it largely up to parity with Talk, save for features relating to:
- presence & nicknames
- circle management (permissions, sources)
- deprecated message types
In addition to implementing remaining functionality for basic usage
patterns, makes the following changes:
- glyphs per target, not multiple targets
- assume /~ship/path paths are created/used by the chat-hook
Code cleanup pending.