Add mbr to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1270
Add mbr to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1270

Packages: mbr mbr-udeb

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