added travis to work for multple symfony versions
added travis to work for multple symfony versions

Vreasy/Codeception,Codeception/Codeception,Codeception/Codeception,hubbyist/Codeception,Naktibalda/Codeception,janhenkgerritsen/Codeception,Codeception/base,kt81/Codeception,TehJoE/Codeception,tasselchof/Codeception,janhenkgerritsen/Codeception,kt81/Codeception,tasselchof/Codeception,TehJoE/Codeception,pitpit/Codeception,tiger-seo/Codeception,hubbyist/Codeception,Codeception/base,Naktibalda/Codeception,sergeyklay/Codeception,sergeyklay/Codeception,tasselchof/Codeception,tiger-seo/Codeception,Naktibalda/Codeception,Codeception/base,Vreasy/Codeception,orhan-swe/Codeception,orhan-swe/Codeception,pitpit/Codeception