Fix a bug (now bins with value equal to 1 are visible on histograms) + misc updates.
Fix a bug (now bins with value equal to 1 are visible on histograms) + misc updates.

jdhp-sap/data-pipeline-standalone-scripts,jdhp-sap/data-pipeline-standalone-scripts,jdhp-sap/sap-cta-data-pipeline,jdhp-sap/sap-cta-data-pipeline