tooltip text generation: added TODO item, normalize-space()
tooltip text generation: added TODO item, normalize-space()

Added a TODO item for the tooltip text overlap, to be implemented
both in the xsl/openbibl.xsl and the js/openbibl/tooltip.js files.

Added a call to normalize-space() in the tooltip-text variable
to keep unnecessary from the TEI XML file out of the attribute
used for tooltips.

kirschbombe/openbibl,kirschbombe/openbibl,kirschbombe/openbibl,kirschbombe/openbibl