Migrate authentication to beans.

wise-webapp/src/main/webapp/WEB-INF/views/init.jsp

@@ -0,0 +1,10 @@
+<%@taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
+<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
+<%@taglib prefix="spring" uri="http://www.springframework.org/tags" %>
+<%@taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
+<%@ taglib uri = "http://java.sun.com/jsp/jstl/functions" prefix = "fn" %>
+
+<%
+    request.setAttribute("principal", com.wisemapping.security.Utils.getUser());
+%>
+