Device hierarchy
================

Service		org.neard
Interface	org.neard.Device
Object path	[variable prefix]/{nfc0}/{device0, device1...}

Method		dict GetProperties()

			Returns all properties for the device. See the
			properties section for available properties.

			Possible Errors: org.neard.Error.DoesNotExist

		void Push(dict attributes)

			Creates an NDEF record from the attributes dictionary.

			The attributes argument should at least contain a
			record type. The rest of the attributes dictionary
			depends on the record type:

			 -----------------------------------------------------
			|       Type     |     Additional dictionary keys     |
			 -----------------------------------------------------
			|       Text     | Encoding, Language, Representation |
			 -----------------------------------------------------
			|       URI      |                URI                 |
			 -----------------------------------------------------
			|   SmartPoster  |                URI                 |
			 -----------------------------------------------------
			|    Handover    |  Carrier (wifi or/and bluetooth)   |
			 -----------------------------------------------------
			| StaticHandover |  Carrier (wifi or/and bluetooth)   |
			 -----------------------------------------------------
			|       MIME     |      MIME, Payload (optional)      |
			 -----------------------------------------------------

			Possible Errors: org.neard.Error.PermissionDenied
					 org.neard.Error.InvalidArguments
					 org.neard.Error.InProgress


Signals		PropertyChanged(string name, variant value)

			This signal indicates a changed value of the given
			property.


Properties	array{object} Records [readonly]

			List of NDEF records object paths.