Switch to container architecture for Travis
Switch to container architecture for Travis

creichert/wai,utdemir/wai,sordina/wai,utdemir/wai,tolysz/wai,kazu-yamamoto/wai,utdemir/wai,frontrowed/wai,tolysz/wai,kazu-yamamoto/wai,utdemir/wai,frontrowed/wai,yesodweb/wai,sordina/wai,erikd/wai,erikd/wai,erikd/wai,sordina/wai,tolysz/wai,sordina/wai,erikd/wai,frontrowed/wai,frontrowed/wai,tolysz/wai,creichert/wai,yesodweb/wai