D-Net

Updating string regexes for data cleaning in serializer

fixes in serializer

fixes for newlines and other special chars in serializer; added jsoup lib for stripping html tags from text

fixes for newlines and other special chars in serializer; added jsoup lib for stripping html tags from text

updates job props for giorgos

new optimized serializer

fixed error in json file

fix for datetime parsing in lod import; finalized configuration; removed unused objects from mappers;