Use AbstractLesson.getLink() and getFormAction() more

Rather than constructing URL's manually all the time, rather
make use of existing mechanisms to create the URL, and use
it consistently.


git-svn-id: http://webgoat.googlecode.com/svn/trunk@184 4033779f-a91e-0410-96ef-6bf7bf53c507

webgoat/main/project/WebContent/lessons/SQLInjection/SearchStaff.jsp

@@ -12,7 +12,7 @@
 			<%
 			}
 			%>
-			<form id="form1" name="form1" method="post" action="attack?menu=<%=webSession.getCurrentMenu()%>">
+			<form id="form1" name="form1" method="post" action="<%=webSession.getCurrentLesson().getFormAction()%>">
 			    	<label>Name
 					<input class="lesson_text_db" type="text" name="<%=SQLInjection.SEARCHNAME%>"/>
 		        </label>