Add a context resource
Merge pull request #134 from zf-fr/prev-route-match

Add a context resource
Remove hydrator mapping for Collection
Merge pull request #136 from zf-fr/remove-collection-hydrator

Remove hydrator mapping for Collection
Add message and status code to body

While setting the error message only as Reason Phrase sounded very
« REST », it’s actually very useful to be able to see the error
directly into the body.
Merge branch 'master' of https://github.com/zf-fr/zfr-rest into extraction