Merge branch 'upstream-merge'

Merge branch 'upstream-merge'

* upstream-merge: (137 commits)
  Update version to 1.1.0-rc2
  tcg/ppc64: Fix CONFIG_TCG_PASS_AREG0
  tcg/ppc64: Don't hardcode register numbers for qemu_ld/st
  qdev: fix -device foo,?
  qemu-img: Fix segmentation fault
  qcow2: Don't ignore failure to clear autoclear flags
  coroutine: Fix setup of sigaltstack coroutines
  qapi: QMP input visitor, handle floats parsed as ints
  usb-host: handle guest-issued clear halt
  qxl: set size of PCI IO BAR correctly (16) for revision 2
  qemu-doc: Use QEMU instead of qemu for product name
  qemu-doc: Fix executable name in examples
  qemu-doc: Add missing parameter in description of -D option
  configure: Use QEMU instead of Qemu
  fix some common typos
  qemu-timer: Fix wrong error message
  mips_fulong2e: Don't register "cpu" VMState twice
  pc: Add back PCI.rombar compat property
  qdev: Fix adding of ptr properties
  qdev: Use object_property_print() in info qtree
  ...

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