Fix removal of required dependency in a6f2a56
Fix removal of required dependency in a6f2a56

org.springframework.beans.factory is required for classes in the plugin
to be instantiated by Spring. In this case the ScanServlet

http://jira.diamond.ac.uk/browse/DATAACQTEAM-223
Mark-Booth/daq-eclipse,Mark-Booth/daq-eclipse,Mark-Booth/daq-eclipse