filter in xslt removed, must be realized in java filter impl, but obviously not necessary anymore anyway

This reverts commit bef32b4a

This reverts commit 743bd157

This reverts commit 031024ff

new ARL, WZB and RuR sources integrated into one bundles source econstor... needs to be run with 'from date'

npm cache clear --force && npm install --no-shrinkwrap --update-binary