title: Which language should I specify in .travis.yml?
body: <p>I'm in the process of setting up a travis CI server, and am creating my .travis.yml.</p>
  
  <p>My app architecture is a Django backend with an angular frontend, both of which have different dependencies specified.</p>
  
  <p>My question: .travis.yml requires a language to be specified. I could pick either javascript (angular) or python (django). Which should I specify? Is there a way to specify both, and install dependencies for both? I haven't seen anything in the travis docs.</p>
  
  <p>Thanks!</p>