Add latex-cjk-common to ubuntu-precise; resolves travis-ci/apt-package-whitelist#737
Add latex-cjk-common to ubuntu-precise; resolves travis-ci/apt-package-whitelist#737

Packages: latex-cjk-common latex-cjk-chinese latex-cjk-japanese latex-cjk-korean latex-cjk-thai latex-cjk-all cjk-latex

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