Fix NPE in setup wizard, load securityProperties

java.lang.NullPointerException
	at org.jivesoftware.util.JiveGlobals.setupPropertyEncryptionAlgorithm(JiveGlobals.java:866)
	at org.jivesoftware.openfire.admin.setup.setup_002dhost_002dsettings_jsp._jspService(setup_002dhost_002dsettings_jsp.java:127)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:738)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1651)
	at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
	at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1639)
	at org.jivesoftware.util.LocaleFilter.doFilter(LocaleFilter.java:74)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1639)
	at org.jivesoftware.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:50)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1639)
	at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:78)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1639)
	at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:164)