ID propagation in LD

[rob-metalinkage]

"@iot.id": 1,
"@iot.selfLink": "http://example.org/v1.1/Observations(1)",

needs to get translated into object ids in the RDF - currently ignored and blank nodes [] generated.

[rob-metalinkage]

is it even possble to have an attribute like "@iot.id" and use JSON-LD?

[rob-metalinkage]

The context builds ignoring the mapping - without raising an error... will need to avoid silent failures like this

[avillar]

The problem is that the properties are being ignored since the JSON-LD spec recommends not using terms starting with @ to avoid potential clashes with future keywords, so I just ignore them altogether when annotating. Fixed per opengeospatial/ogc-na-tools#14.