Merge commit '4a7e1190dfadf1154721125af8510347f8a3c56b' into upstream-merge

Merge commit '4a7e1190dfadf1154721125af8510347f8a3c56b' into upstream-merge

* commit '4a7e1190dfadf1154721125af8510347f8a3c56b': (32 commits)
  QMP: Introduce the qmp_capabilities command
  QMP: Add QEMU's version to the greeting message
  segfault due to buffer overrun in usb-serial
  audio streaming from usb devices
  vnc: Migrate to using QTAILQ instead of custom implementation
  kvm: reduce code duplication in config_iothread
  Documentation: Add command line options to function index
  Documentation: Add monitor commands to function index
  Documentation: Enhance documentation (index, keywords)
  Documentation: Fix item list
  Documentation: Add some basic documentation on make targets
  Documentation: Use UTF-8 encoding and fix one wrong encoding
  Documentation: Add direntry for info format
  block: saner flags filtering in bdrv_open2
  virtio-blk: Generate BLOCK_IO_ERROR QMP event
  scsi: Generate BLOCK_IO_ERROR QMP event
  ide: Generate BLOCK_IO_ERROR QMP event
  block: BLOCK_IO_ERROR QMP event
  QMP: BLOCK_IO_ERROR event handling
  qcow2: Fix signedness bugs
  ...

Conflicts:
	qemu-monitor.hx

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>