Merge commit 'qemu-svn/trunk'

Merge commit 'qemu-svn/trunk'

* commit 'qemu-svn/trunk':
  Fix wrong return value
  Remove dead AIO code for win32
  target-mips: optimize gen_movcf_*()
  target-mips: optimize gen_movci()
  target-mips: optimize gen_compute_branch1()
  Misc scsi disk/cdrom fixes/improvements 4/4
  misc scsi disk/cdrom fixes/improvements 3/4
  misc scsi disk/cdrom fixes/improvements 2/4
  misc scsi disk/cdrom fixes/improvements 1/4
  target-mips: don't map FP registers as TCG global variables
  target-mips: fix divu instruction
  tcg: fix _tl aliases for divu/remu
  target-ppc: Explain why the whole TLB is flushed on SR write
  Fix hxtool eating backslash sequences for sh != bash