Release 3.27.0 rc2

### Fixed Bugs:

- pm2 installation documentation error
- Use absolute paths with __dirname when adding processes
  to the ProcessSet instance

### Added Features:

- HTTP REST CRUD routes for all database tables
- Use express.Router instead of custom ResourcesRouter
- Enable Cross Origin Resource Sharing by default
Note for future: Breaks test idempotentcy, as mentioned in an earlier comments.