Merge remote-tracking branch 'qmp/queue/qmp' into staging

Merge remote-tracking branch 'qmp/queue/qmp' into staging

* qmp/queue/qmp: (29 commits)
  Add 'query-events' command to QMP to query async events
  qapi: convert netdev_del
  qapi: convert netdev_add
  net: net_client_init(): use error_set()
  net: purge the monitor object from all init functions
  qemu-config: introduce qemu_find_opts_err()
  qemu-config: find_list(): use error_set()
  qerror: introduce QERR_INVALID_OPTION_GROUP
  qemu-option: qemu_opts_from_qdict(): use error_set()
  qemu-option: introduce qemu_opt_set_err()
  qemu-option: opt_set(): use error_set()
  qemu-option: qemu_opts_validate(): use error_set()
  qemu-option: qemu_opt_parse(): use error_set()
  qemu-option: parse_option_size(): use error_set()
  qemu-option: parse_option_bool(): use error_set()
  qemu-option: parse_option_number(): use error_set()
  qemu-option: qemu_opts_create(): use error_set()
  introduce a new monitor command 'dump-guest-memory' to dump guest's memory
  make gdb_id() generally avialable and rename it to cpu_index()
  target-i386: Add API to get note's size
  ...