XML - test with namespaced elements

[coreation]

No test so far has been done with xml namespaces, only xml files without namespaces have been tested.

[coreation]

Update on the issue, ns'ing is a problem. However I will leave this issue as it is, because we'll may have to update the entire XML reader. This is to be discussed for we will see what we will use for "large datafiles".