add better readable format to Y datapoints for tooltip. set date to numerical date.
add better readable format to Y datapoints for tooltip. set date to numerical date.

xizi-xu/Argus,rajsarkapally-sfdc/Argus,dilipdevaraj-sfdc/Argus-1,rajsarkapally/Argus,dilipdevaraj-sfdc/Argus-1,xizi-xu/Argus,salesforce/Argus,SalesforceEng/Argus,rajsarkapally/Argus,rajsarkapally-sfdc/Argus,rajsarkapally-sfdc/Argus,dilipdevaraj-sfdc/Argus-1,dilipdevaraj-sfdc/Argus-1,salesforce/Argus,rajsarkapally/Argus,rajsarkapally/Argus,xizi-xu/Argus,xizi-xu/Argus,rajsarkapally-sfdc/Argus,salesforce/Argus,SalesforceEng/Argus,SalesforceEng/Argus,rajsarkapally/Argus,SalesforceEng/Argus,salesforce/Argus