Travis CI: force Ubuntu 14.04 Trusty
Travis CI: force Ubuntu 14.04 Trusty

langner/cclib,gaursagar/cclib,berquist/cclib,langner/cclib,gaursagar/cclib,ATenderholt/cclib,cclib/cclib,berquist/cclib,ATenderholt/cclib,cclib/cclib,langner/cclib,berquist/cclib,cclib/cclib