Add test for combination of IPv4 and IPv6

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<!ELEMENT type (#PCDATA)>

<!ELEMENT name (#PCDATA)>

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<issues burpVersion="1.6.05" exportTime="Sat Sep 13 22:39:44 CEST 2014">

  <issue>

    <serialNumber>173204192</serialNumber>

    <type>exampleIPv4</type>

    <name>Example importer_test_fid2</name>

    <host ip="127.0.0.1">http://example.com</host>

    <path>EXAMPLE_PATH</path>

    <location>EXAMPLE</location>

    <severity>High</severity>

    <confidence>Firm</confidence>

    <issueBackground>issueBackground</issueBackground>

    <remediationBackground>remediationBackground</remediationBackground>

    <issueDetail>issueDetail</issueDetail>

    <remediationDetail>remediationDetail</remediationDetail>

    <requestresponse>

      <request method="POST" base64="true"></request>

      <response base64="true"></response>

      <responseRedirected>false</responseRedirected>

    </requestresponse>

  </issue>

  <issue>

    <serialNumber>798964346</serialNumber>

    <type>exampleIPv6</type>

    <name>Example importer_test_fid1</name>

    <host ip="::1">http://example.com</host>

    <path>EXAMPLE_PATH</path>

    <location>EXAMPLE</location>

    <severity>High</severity>

    <confidence>Firm</confidence>

    <issueBackground>issueBackground</issueBackground>

    <remediationBackground>remediationBackground</remediationBackground>

    <issueDetail>issueDetail</issueDetail>

    <remediationDetail>remediationDetail</remediationDetail>

    <requestresponse>

      <request method="POST" base64="true"></request>

      <response base64="true"></response>

      <responseRedirected>false</responseRedirected>

    </requestresponse>

  </issue>

</issues>