Fixed: EZP-23253 XmlText Fieldtype does not respect literal tag with cla...

...ss html

Fixes: https://jira.ez.no/browse/EZP-23253 XmlText Fieldtype doesn't respect literal tag with class html

Not an xsl expert, but i have manually tested this patch and seems to work as expected. 

Let me know if it works
Right, and it should be, I missed that only class attribute is copied. Ignore :)