XSS Lesson Modifications (#367)

* initial cut on XSS, need to add some tests still

* initial unit tests for assignment endpoints

* updating header comment license thingy

* comment, clean up

* Stubs for security unit test

* Additional Unit Testing

* isEncoded and isNotEncoded Unit Tests added

* http-proxies updates

* update for XXE solutions

* Work-around to handle special chars in action ... currently to be able to match {userId} in hint creation/assignment for IDOR

* IDOR hints updated

* mitigation content update

* mitigation content update ... 2

* Lesson Overview updates

* including restart lesson fix for lesson overview

webgoat-container/src/main/resources/static/css/main.css

@@ -973,15 +973,8 @@ cookie-container {
     padding-top:2px;
 }
 
-.attack-link.solved-true {
-    color:#88FB88;
-}
-
 .attack-link.solved-false {
-    color:#f2baba;
-}
-
-.attack-link.cur-page, .page-link.cur-page {
+    background-color:#ac2925;
     color:#fff;
 }
 
@@ -989,6 +982,17 @@ cookie-container {
     color:#eee;
 }
 
+.attack-link.solved-true {
+    /*color:#88FB88;*/
+    background-color:#247506;
+    color:#fff;
+}
+
+.attack-link.cur-page, .page-link.cur-page {
+    color:#fff;
+    font-weight:bold;
+}
+
 .page-link-wrapper {
     display:inline-block;
 }