Version 0.2

• Add incremental daily update for CrossRef resources.
• Support variety of dump/snaphot format for CrossRef with gap update.
• Update to ES7, Gradle 7
• Better blocking and pairwise matching steps, increase of matching accuracy
• A lot of simplifications in the look-up and matching process
• Matching 2-3 times faster in average
• Fix various bugs
• Parsing of MEDLINE/PubMed metadata records and conversion to CrossRef format