Fix for enhancement NMS-5876
Merge branch '1.10' of github.com:OpenNMS/opennms into 1.10
change read-only calls to use the read-only version of RrdDb
Merge remote-tracking branch 'origin/1.10' into 1.12

The file service.jsp doesn't exist on 1.12, it was reworked to use
Spring MVC style, so the original solution was ported to the correct
syntax on opennms-webapp/src/main/webapp/WEB-INF/jsp/service.jsp

Conflicts:
	opennms-webapp/src/main/webapp/element/service.jsp