missing namespace declaration, lang attribute for epd:safetyMargins/epd:description

[okworx]

Test case:

• Fill in values in fields "Sicherheitszuschlag" and "Beschreibung".

Observed behavior in XML output:

<epd:safetyMargins xmlns:epd="http://www.iai.kit.edu/EPD/2013">
                    <epd:margins>10.0</epd:margins>
                    <description xmlns="http://www.iai.kit.edu/EPD/2013">foo</description>
</epd:safetyMargins>

Expected behavior:

<epd:safetyMargins xmlns:epd="http://www.iai.kit.edu/EPD/2013">
                    <epd:margins>10.0</epd:margins>
                    <epd:description xmlns="http://www.iai.kit.edu/EPD/2013" xml:lang="de">foo</description>
</epd:safetyMargins>