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.
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
Fix for NMS-6141 - Set default log level to WARN (like 1.10)
Merge remote-tracking branch 'origin/1.12' into space/13.2

Conflicts:
	opennms-base-assembly/src/main/filtered/etc/log4j.properties
implement mock reload()
fix merge error
NMS-6168 - maint_events.sh is not working
Merge remote-tracking branch 'origin/1.10' into 1.12
Added focus node list to the SavedHistory. Undid change where history was cleaned up
after each save since this breaks the back button history function.
clean up toolbar controls
Merge branch 'space/13.2' into space/feature/searchtool
Fixed state transitions of the Auto Refresh and Status selector operations.
Cleaned up the focus node history code a bit.
Fix misnamed method SyslogDestination.setMaxMessageLength(int)
NMS-6129 handle rate limits cleanly in the geo maps