Added device type as a property of the API.
Fixed indentation.Added property to isSupported
Updated the isSupported return signature to match the specs
Added type in the test vocabulary.js
Enable devicestatus in linux.
Needs further fixing as the true should return only in the case of null property (to check if the aspect is available) and then check the property if it is a supported property
Merge pull request #542 from andreasbotsikas/AddDeviceTypeAsProperty

Added device type as a property of the API.