JUnit Format does not work with Jenkins CI

In the JUnit-Format "LiveTest/src/LiveTest/Packages/Reporting/Format/JUnit.php" you add an empty <propertes> child element to the junit.xml.
xUnit don't like this, so delete this lines (44,45) from the class.

``` php
$xml_properties = $dom->createElement('properties');
$xml_testsuite->appendChild($xml_properties);
```
