fix #153 revert qemu requirement to 1.1+

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
prepare for release

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
doc: add known issue for AppArmor

Signed-off-by: Hiroshi Miura <miurahr@linux.com>