minor tweak and fix memory leak for bibliography importer
minor tweak and fix memory leak for bibliography importer

bobi32/gummi,turbopobre/gummi,mlda065/gummi,bobi32/gummi,mlda065/gummi,turbopobre/gummi,turbopobre/gummi,bobi32/gummi,mlda065/gummi,alexandervdm/gummi,mlda065/gummi,turbopobre/gummi,alexandervdm/gummi,bobi32/gummi,alexandervdm/gummi