Adds new method for rule merge

IMPORTANT: SecDefaultAction specified on a child configuration will
overwrite the ones specified on the parent; Previously it was
concatenating.

src/actions/ver.cc

@@ -28,7 +28,6 @@ namespace actions {
 
 
 bool Ver::evaluate(RuleWithActions *rule, Transaction *transaction) {
-    rule->m_ver = m_parser_payload;
     return true;
 }