Add qemu to ubuntu-precise; resolves travis-ci/apt-package-whitelist#483
Add qemu to ubuntu-precise; resolves travis-ci/apt-package-whitelist#483

Packages: qemu qemu-system qemu-block-extra qemu-system-common qemu-system-misc qemu-system-arm qemu-system-mips qemu-system-ppc qemu-system-sparc qemu-system-x86 qemu-user qemu-user-static qemu-user-binfmt qemu-utils qemu-guest-agent qemu-kvm libcacard0 libcacard-dev libcacard-tools

AlCutter/apt-package-whitelist,AlCutter/apt-package-whitelist,travis-ci/apt-package-whitelist,travis-ci/apt-package-whitelist