Add Lumen sample application tests to Travis
Add Lumen sample application tests to Travis

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