Halyard 2.0 ("Main Station")

Major focus of Halyard 2.0 release is on usability.
All the Halyard command line tools have been consolidated under one launcher and almost all of them have been improved. New SPARQL function halyard:forkAndFilterBy is unifying parallelization approach of Halyard Bulk Update and Bulk Export tools. Halyard ElasticSearch integration newly propagates results back to the SPARQL query variables and Halyard ElasticSearch Indexer allows to create the index mapping. Parsing of partially corrupted or invalid Turtle files is now more robust to Bulk Load maximum data also from "dirty" datasets (in --skip-invalid mode). Performance of the Halyard-internal SPARQL federation has been improved by including federated cardinalities in the query optimisation. And last but not least - new Halyard command line profiler tool reports SPARQL query optimizers data to help further offline performance analysis.