Abstract, document and manual artefact formatters
Slug generator can generate with any prefix
Notify Panopticon of Manual publication etc
Manual builds documents via specialised factory
Fix access control feature order dependence
Test to edit manual section and re-publish
Manual publishing to Content API

Manuals will masquerade as Specialist Documents
for the time being until this approach proves
to be inadaquate.
Generate manual slugs under /guidance
[WIP] Work around GdsApi::Response#fetch failing

This would be better solved by making GdsApi::Response respond to #fetch
correctly and then bumping the version of that gem in this app.
Change manual slug prefix to "guidance" in cukes
Update ManualRepositorySpec to reflect new behaviour
SpecialistDocuments publish with a bang
Manual document marshalling

We need a simpler domain, this wiring is a bit tricky.
Clarify repository comment
Send different artefact kinds to Panopticon