Fixed NMS-7017.

Changed the license in the about pages to AGPL (including all links and references).
Merge branch 'rc/stable/1.14.0' into jira/NMS-7017

Conflicts:
	opennms-webapp/src/main/webapp/support/about.jsp
Merge branch 'jira/NMS-7017' into rc/stable/1.14.0
Merge branch 'rc/stable/1.14.0' of github.com:OpenNMS/opennms into rc/stable/1.14.0