Compability with Scroll-PDF for Name List Macros

Using the k15t scroll-pdf addon links can be converted to spans by this third party plugin, but spans with a class "projectdoc-namelist" have a different semantic for projectdoc. HTML-spans with this class are rendered as boxes.

Solution: introduction of a new css class "projectdoc-namelist-box" for the box-style and keeping the projectdoc-namelist class for compability reasons, but without the box-style.