title: How to config remember me in jasig cas 5.1.x
body: <p>I successed in cas 4.2.x via this document:
  <a href="https://apereo.github.io/cas/4.2.x/installation/Configuring-LongTerm-Authentication.html" rel="nofollow noreferrer">https://apereo.github.io/cas/4.2.x/installation/Configuring-LongTerm-Authentication.html</a>
  many changes in cas 5.1.x ,now I want to upgrade to 5.1.x . Readed many documents,but still confused. like . where is <code>&lt;var name="credential" class="org.jasig.cas.authentication.UsernamePasswordCredential"/&gt;</code> etc.
  <br>I don't know how to config it . any one master it? or tell me the document where it is . Thanks.</p>