Add libsdl2-2.0-0 to ubuntu-precise; resolves travis-ci/apt-package-whitelist#366
Add libsdl2-2.0-0 to ubuntu-precise; resolves travis-ci/apt-package-whitelist#366

Packages: libsdl2-2.0-0 libsdl2-dev libsdl2-dbg

Tyrael/apt-package-whitelist,phw/apt-package-whitelist,travis-ci/apt-package-whitelist,jmerkow/apt-package-whitelist,phw/apt-package-whitelist,sternb0t/apt-package-whitelist,christophgysin/apt-package-whitelist,jschlyter/apt-package-whitelist,rnestler/apt-package-whitelist,Tyrael/apt-package-whitelist,rnestler/apt-package-whitelist,AlCutter/apt-package-whitelist,travis-ci/apt-package-whitelist,christophgysin/apt-package-whitelist,jmerkow/apt-package-whitelist,AlCutter/apt-package-whitelist,sternb0t/apt-package-whitelist,jschlyter/apt-package-whitelist