/:resource provides small description.
Refactor: generic resource paths.
Returns 404 when resource not found.
Allow posting of resources.

* Using Restify Error classes.
/list and /:id now work.
Merge branch 'feature/resource-desc' into develop
Added a "listening()" status function.
Registry includes index URL for services.
Version bump.
Merge branch 'release/0.0.6' into develop