ACTION-370: Harmonise hash uris to slash uris for horizontal modules

Dear all,

Just for the official record, during call May 30th, we created ACTION-370,
https://www.w3.org/2015/spatial/track/actions/370
Harmonise hash uris to slash uris for horizontal modules.

Pull request 906 https://github.com/w3c/sdw/pull/906 implemented this:
namespace ssn-system: is now slash-based. This pull request has been
accepted by the editors.

The list of terms defined under this module is:

@prefix ssn-system <http://www.w3.org/ns/ssn/systems/>  .

- http://www.w3.org/ns/ssn/systems/Accuracy
- http://www.w3.org/ns/ssn/systems/ActuationRange
- http://www.w3.org/ns/ssn/systems/BatteryLifetime
- http://www.w3.org/ns/ssn/systems/Condition
- http://www.w3.org/ns/ssn/systems/DetectionLimit
- http://www.w3.org/ns/ssn/systems/Drift
- http://www.w3.org/ns/ssn/systems/Frequency
- http://www.w3.org/ns/ssn/systems/inCondition
- http://www.w3.org/ns/ssn/systems/Latency
- http://www.w3.org/ns/ssn/systems/MaintenanceSchedule
- http://www.w3.org/ns/ssn/systems/MeasurementRange
- http://www.w3.org/ns/ssn/systems/OperatingPowerRange
- http://www.w3.org/ns/ssn/systems/OperatingProperty
- http://www.w3.org/ns/ssn/systems/OperatingRange
- http://www.w3.org/ns/ssn/systems/Precision
- http://www.w3.org/ns/ssn/systems/Resolution
- http://www.w3.org/ns/ssn/systems/ResponseTime
- http://www.w3.org/ns/ssn/systems/SystemCapability
- http://www.w3.org/ns/ssn/systems/SystemProperty
- http://www.w3.org/ns/ssn/systems/Selectivity
- http://www.w3.org/ns/ssn/systems/Sensitivity
- http://www.w3.org/ns/ssn/systems/SurvivalProperty
- http://www.w3.org/ns/ssn/systems/SurvivalRange
- http://www.w3.org/ns/ssn/systems/SystemLifetime
- http://www.w3.org/ns/ssn/systems/hasOperatingProperty
- http://www.w3.org/ns/ssn/systems/hasOperatingRange
- http://www.w3.org/ns/ssn/systems/hasSurvivalProperty
- http://www.w3.org/ns/ssn/systems/hasSurvivalRange
- http://www.w3.org/ns/ssn/systems/hasSystemCapability
- http://www.w3.org/ns/ssn/systems/hasSystemProperty
- http://www.w3.org/ns/ssn/systems/qualityOfObservation

Best,
Maxime