update environment variables in reporter script

var/local/xcache/run_reporter.sh

 #!/bin/bash
 
-export XC_SITE="LRZ-LMU"
-export XC_REPORT_COLLECTOR="http://collector.atlas-ml.org:80"
+export XC_RESOURCENAME="LRZ-LMU"
+export XC_REPORT_COLLECTOR="http://xcache.atlas-ml.org:80"
 export XC_INSTANCE="server01"
 
 python /var/local/xcache/reporter4.py