anchor.diff:  * Being notified when changes on context information take place (e.g. the temperature has changed) or with a given frequency (e.g. get the temperature each minute).
   * Query context information. The Orion Context Broker stores context information updated from applications, so queries are resolved based on that information.
   
  -
  -* <b>Multi service tenancy</b>  
  +## Editors
  +
  +  + Fermín Galán, Telefónica I+D.
  +
  +## Copyright
  +
  +This specification is licensed under the
  +[FIWARE Open Specification License]
  +(http://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/FI-WARE_Open_Specification_Legal_Notice_%28essential_patents_license%29).
  +
  +## Status
  +
  +Final version aligned with FIWARE Release 4.
  +
  +## Multi service tenancy
   
   Fiware-Service and Fiware-ServicePath are set at entity creation time using HTTP headers in the entity creation REST request.
   
  
positive.code: Multitenant/multiservice ensures that the entities/attributes/subscriptions of one service/tenant are "invisible" to other services/tentants. For example, queryContext on tenantA space will never return entities/attributes from tenantB space.
     
     
  * <b>Entity service paths</b>   
     
  Orion Context Broker supports hierarchical scopes, so entities can be assigned to a scope at creation time with updateContext (or related convenience operation). Then, queryContext (and related convenience operations)can be also scoped to locate entities in the corresponding scopes.
  
  
negative.code: + /v1/contextSubscriptions
  + /v1/contextSubscriptions/{subscriptionID}
  
  ### NGSI10 standard operations
  
  This section describes the different standard NGSI10 operations that the Orion Context Broker supports, showing examples of requests and responses. We use the term "standard" as they are directly derived from the OMA NGSI specification, to distinguish them from the other family of operations ("convenience") which has been defined by the FI-WARE project to ease the usage of NGSI implementations
  
  