Merge branch '1.8-dev'

Conflicts:
	openvpms-web-app/src/conf/localisation/help.properties
	openvpms-web-component/src/main/java/org/openvpms/web/component/print/AbstractPrinter.java
	openvpms-web-workspaces/src/main/java/org/openvpms/web/workspace/patient/history/AbstractPatientHistoryTableModel.java
	openvpms-web-workspaces/src/main/java/org/openvpms/web/workspace/patient/problem/ProblemTableModel.java
	openvpms-web-workspaces/src/main/java/org/openvpms/web/workspace/workflow/investigation/InvestigationResultSet.java