Lib upgrades to address vulnerability

Upgraded Jena from 3.3.0 to 3.14.0, which in turn brings in upgraded com.fasterxml.jackson.core:jackson-databind to address vulnerability reported by snyk.

watchdog adjustments

v0.6.0

0.6.0 watchdog adjustments while testing cronjob

watchdog option

This option checks for current remote CF version and triggers conversion/registration in case of new version, based on comparison with latest processed file.

Even simpler execution and ability to register against an ORR instance

See the README.

Simplified execution

Running

• Download the latest executable JAR cf2rdf-x.y.z.jar from https://github.com/mmisw/cf2rdf/releases/
• Required: define the CF_VERSION environment variable to indicate the version number to be processed
• Optional: define the CF2RDF_OUTPUT_DIR environment variable to indicate the output directory.
  The default output directory is ./cf2rdf_output/.
• Run the program

For example, for version number 46, and the default output directory:

$ CF_VERSION=46 java -jar cf2rdf-x.y.z.jar