BibRank: micro-optimized get_cited_by_weight()
BibRank: micro-optimized get_cited_by_weight()

* Micro-optimized get_cited_by_weight() so that it would not use
  temporary lists.  This speeded up the citation ranking especially
  for big search results lists by some 30% or more (or less, depending
  on the concrete situation).

inveniosoftware/invenio,tiborsimko/invenio,tiborsimko/invenio,inveniosoftware/invenio