title: Location of xsd for ant ivy lib "antlib:org.apache.ivy.ant" for IDE autocomplete with xsd?
body: <p>I want create Ivy Ant tasks in xml editor in IDE (Intellij iDEA) with autocomplete based on xsd , but I cannot find xsd for register XML namespace xmlns:ivy="antlib:org.apache.ivy.ant"</p>
  
  <p>Where I can find it?</p>