not compatible with twitter4j 4
Fixing bug NMS-6463 - The Upgrade Tools are throwing a NPE when a JMX service is not configured properly on collectd-configuration.xml
add explicit postgresql dependency to make sonar happy
Merge remote-tracking branch 'origin/1.10' into 1.12

Conflicts:
	pom.xml
Merge remote-tracking branch 'origin/1.12'

Conflicts:
	core/upgrade/src/main/java/org/opennms/upgrade/implementations/JmxRrdMigratorOffline.java
we aggregate, so we do not really need this
Merge remote-tracking branch 'origin/1.10' into 1.12
Merge remote-tracking branch 'origin/1.12'
JMXCollector: move inner classes to their own files.
JMX Collector work: add resource-type, javadoc
JMX Collector work: split JMXCollectionResource into single and multiple
versions.
JMX Collector work: Make it all compile.
jmx collector work
Use dnsjava-dependencies, instead of directly on dnsjava.
fix compile.
VTDXml
virtual-node work
fix sonar dependency
remove maven plugin version override.
jetty v9 work.