Explorer: ValueError for XMLs attributes and text fragments

[todeslord]

There is a problem in displaying fragments in XML-files with the classifiers attributes and text in (it seems) all cases.

I also found one fragment of classifier element with the same error. See below:

ValueError at /discovery/contributions/html5XMLHttpRequest/companyReset.xml/element/Company/element/Departments/element/Department/2

Look at html5XMLHttpRequest/companyReset.xml

[todeslord]

Look dissolved to me.

The only remaining bug. Like described in #26
is occurs when using the "Back" Link, when you display a fragment that is indexed; like (/discovery/contributions/html5XMLHttpRequest/companyReset.xml/element/Company/element/Departments/element/Department/2)