Creates RuleUnconditional

Makes RuleScript child of RuleWithActions instead of Operator

src/operators/detect_xss.h

@@ -31,7 +31,7 @@ class DetectXSS : public Operator {
             m_match_message.assign("detected XSS using libinjection.");
         }
 
-    bool evaluate(Transaction *t, RuleWithOperator *rule,
+    bool evaluate(Transaction *t, RuleWithActions *rule,
         const std::string& input,
         std::shared_ptr<RuleMessage> ruleMessage) override;
 };