Add debmirror to ubuntu-precise; resolves travis-ci/apt-package-whitelist#915
Add debmirror to ubuntu-precise; resolves travis-ci/apt-package-whitelist#915

Packages: debmirror

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