Add xserver-xorg-video-dummy to ubuntu-precise; resolves travis-ci/apt-package-whitelist#855
Add xserver-xorg-video-dummy to ubuntu-precise; resolves travis-ci/apt-package-whitelist#855

Packages: xserver-xorg-video-dummy

christophgysin/apt-package-whitelist,christophgysin/apt-package-whitelist,travis-ci/apt-package-whitelist,AlCutter/apt-package-whitelist,jmerkow/apt-package-whitelist,AlCutter/apt-package-whitelist,phw/apt-package-whitelist,travis-ci/apt-package-whitelist,jmerkow/apt-package-whitelist,phw/apt-package-whitelist