title: How to use sbt from behind proxy?
body: <p>How do I configure sbt to use a proxy?</p>
  
  <p>For example, my build definition needs to connect to GitHub, specifying connection parameters for <code>http.proxy</code>, <code>http.proxyPort</code>, <code>user</code>, and <code>password</code>.</p>
  
  <p>How would I pass in these settings to sbt?</p>
  
  <p>Is there an easy way to switch between proxy/no-proxy settings for when I work from home?</p>