Fix for Big NMS-6611

Problem with disable-ssl-verification in XML_Collector
NMS-6621 make order of graph reports deterministic
Merge remote-tracking branch 'origin/1.12'
Merge branch 'master' into feature-snmp4j2-upgrade
Merge branch 'feature-snmp4j2-upgrade' of https://github.com/OpenNMS/opennms into feature-snmp4j2-upgrade