Temporarily require sudo for Travis builds
Temporarily require sudo for Travis builds

There is an issue with travis and chrome-sandbox that requires this
temporarily.

thecoolestguy/frontend,dartajax/frontend,ilios/frontend,jrjohnson/frontend,jrjohnson/frontend,ilios/frontend,thecoolestguy/frontend,djvoa12/frontend,dartajax/frontend,djvoa12/frontend