/**
     * <p>Returns the <code>AntBuilder</code> for this project. You can use this in your build file to execute ant
     * tasks. See example below.</p>
     * <pre class='autoTested'>
     * task printChecksum {
     *   doLast {
     *     ant {
     *       //using ant checksum task to store the file checksum in the checksumOut ant property
     *       checksum(property: 'checksumOut', file: 'someFile.txt')
     *