proposed new text for SSN issue "999"

Armin- as discussed in the London f2f call...

"""

In [SSN section 1. Introduction](http://w3c.github.io/sdw/ssn/#intro) OGCs
Sensor Web Enablement (SWE) is cited. It would be worth clarifying that SWE
evolving from way back in 2002 provides distinct provider- and
consumer-focused standards; SensorML (dealing with sensors) and O&M
(dealing with observations and data).
"""

I think I'm correctly channeling Simon here.

Jeremy