BibKnowledge: make XML/XSLT libs optional
- Do not import XML/XSLT libs globally, only for KBT types, because these libs are only recommended, not mandatory. (closes #477)
- Cherry-picked from 333c71aa96557316b1376406ece2bfb45190d1c7.
Tibor Simko <tibor.simko@cern.ch> | Feb 24 2012, 09:39 |