Update .travis.yml
Update .travis.yml

Upgrade travis cmake version
AbberiorInstruments/g3log,jkhoogland/g3log,KjellKod/g3log,ctapmex/g3log,colorer/g3log,AbberiorInstruments/g3log,ctapmex/g3log,jkhoogland/g3log,KjellKod/g3log,colorer/g3log