The Scan() method returns an array of dictionaries, where each dictionary is
defined by a string key plus a variant data (not a string data). This is to
handle the "status" and "access-tech" entries, which are given as unsigned
integers.
Main changes are cleaning up the API and allowing for multi-mode
devices that support two or more of CDMA/EVDO, GSM/UMTS, and LTE
at the same time. This provides a starting discussion point for
the new MM 0.6 API.