Deprecated Spring's own JSP expression evaluation

Since web applications declaring a Servlet 2.3 web.xml become really rare now, we're finally deprecating Spring's own ExpressionEvaluationUtils class. As a consequence, we're also setting "springJspExpressionSupport" to false by default, avoiding the potential double EL evaluation problem on pre-Servlet-3.0 containers.

Issue: SPR-5308

spring-webmvc/src/test/java/org/springframework/web/servlet/tags/AbstractTagTests.java

@@ -41,6 +41,7 @@ public abstract class AbstractTagTests extends TestCase {
 
 	protected MockPageContext createPageContext() {
 		MockServletContext sc = new MockServletContext();
+		sc.addInitParameter("springJspExpressionSupport", "true");
 		SimpleWebApplicationContext wac = new SimpleWebApplicationContext();
 		wac.setServletContext(sc);
 		wac.setNamespace("test");