backport MockSnmpAgent atomic fixes from master
Merge remote-tracking branch 'origin/1.12'
Tweaks to logging and reason codes in HttpMonitor
these should be info, not warn
Merge remote-tracking branch 'origin/1.12'

Conflicts:
	opennms-services/src/main/java/org/opennms/netmgt/poller/monitors/HttpMonitor.java
Added ordering to SpringLoaderTest.
Merge remote-tracking branch 'origin/master' into feature-snmp4j2-upgrade