v0.2.9

Added

• Property named "statistics" that contains a map of transmit and receive
  stats. The fields are:
  • :timestamp - monotonic time for when the stats were last updated
  • :tx_bytes - total bytes transmitted
  • :rx_bytes - total bytes received
  • :tx_packets - total packets transmitted without error
  • :rx_packets - total packets received without error
  • :tx_errors - total outgoing packets with framing errors
  • :rx_errors - total incoming packets with framing errors
  • :tx_overflows - total outing packets dropped due to buffer overflows
  • :rx_overflows - total incoming packets dropped due to buffer overflows
  • :tx_drops - total outgoing packets dropped
  • :rx_drops - total incoming packets dropped
• Property "band" for the frequency band being used by the radio interface
• Property "channel" for the channel being used by the radio interface
• Property "access_technology" for the radio interface that is active