Add libatlas3-base to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1835
Add libatlas3-base to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1835

Packages: libatlas3-base libatlas-base-dev libatlas-dev libatlas-test libatlas-doc

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