Add lua-penlight to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1014
Add lua-penlight to ubuntu-precise; resolves travis-ci/apt-package-whitelist#1014

Packages: lua-penlight lua-penlight-dev

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