Remove unreachable old file admin/error.jsp (NMS-6147)

Conflicts:
	opennms-webapp/src/main/webapp/admin/error.jsp
initial commit for search
Merge branch 'space/13.2' into space/feature/searchtool
Lint cleanup (toLowerCase().equals(), unused protected fields).
Merge branch 'master' into soleger-master
Final modifier cleanup on public static fields.
Fixed failing Test
Changed UI-Factory implementations and changed pax4vaadin to version 0.3.1-SNAPSHOT.
Created new OnmsVaadinUIFactory.
Fixed wrong org.ops4j.pax.vaadin version
Merge branch 'space/13.2' of github.com:OpenNMS/opennms into space/13.2
add search providers
Merge branch 'space/13.2' into space/feature/searchtool

Conflicts:
	features/opennms-osgi-core/src/main/java/org/opennms/osgi/internal/OnmsServiceManagerImpl.java
	features/topology-map/plugins/org.opennms.features.topology.plugins.topo.linkd/src/main/java/org/opennms/features/topology/plugins/topo/linkd/internal/LinkdTopologyProvider.java
Fixed that Nodes/Alarms are shown when there is no Node visible in the UI. Also removed uncommented version info.
Removed Auto-Refresh-Button
Fix for NMS-6165 - possible thread contention checking datacollection-config.xml
Merge remote-tracking branch 'origin/1.12'
Merge remote-tracking branch 'origin/space/13.2'
implement mock reload()
Fix NMS-6166: Added missing metrics for VMware 5 Nodes
- net.droppedRx.summation
- net.droppedTx.summation
- net.errorsTx.summation
- net.multicastTx.summation