make source render in pre tag

Author: rlawson

src/main/webapp/WEB-INF/pages/main_new.jsp

@@ -161,7 +161,7 @@
                		<div class="col-md-12">
                             <h4>Lesson Source Code</h4>
                			<div class="panel" >
-                                    <div class="panel-body" id="lesson_source">				
+                                    <div class="panel-body" id="lesson_source">	                                        
                                     </div>                                    
                			</div>
                		</div>

src/main/webapp/js/goatUtil.js

@@ -35,7 +35,7 @@ goat.utils = {
     },
     showLessonSource: function() {
         $.get("service/source.mvc", {}, function(reply) {
-            $("#lesson_source").html(reply);
+            $("#lesson_source").html("<pre>"+reply+"</pre>");
         }, "html");
     },
     showLessonSolution: function() {