Merge branch 'feature/link-properties'

Allow arbitrary Link properties for representations
Inject route params/options into collection self links
Modified to remove ApiProblem exception details

- Removed ApiProblem exception type remnants from code base and consumed
  them directly from that repository.
Use url as passed

- instead of $uri->toString(), as the latter adds uri encoding, even
  when it validated
Added the LICENSE
Fixed title
Merge branch 'feature/readme-license'
Updated composer.json to add support information
Ensured all PHP files have license and copyright annotations
Merge remote-tracking branch 'upstream/master' into render_embedded_resources