telefonicaid/fiware-orion — pull request #597 by kzangeli (2014-10-27 16:44:30+00:00)
Title: Task/581 v1 context entities attributes value 4ops

### DEscription
New set of convops:
GET/PUT/POST/DELETE /v1/contextEntities/type/{type}/id/{id}/attributes/{attr_name}/{id_value}