Reconsider the format of Action resources and Event resources

[benfrancis]

"name" is used elsewhere to be a human friendly name whereas the name of actions and events is a computer friendly string like the property, action and event keys in the Thing Description.

Maybe name should be something else, like "type".

[benfrancis]

Also the format of Action resources...

{
  "name": "reboot"
}

...and Event resources...

{
  "name": "reboot",
  "description": "Going down for reboot",
  "time": "2017-01-25T15:01:35+00:00"
}

is now inconsistent with the format of Property resources...

{
  "temperature": 21
}

...which use the property name as a key rather than using a "name" property of the object.

The definition of the WebSocket API makes this difference even more obvious. It would be nice to make this more consistent.