Added parent tag pointer throughout call hierarchy.Cleaned up output hierarchy parameter names.

__header.cpp

@@ -5,7 +5,7 @@
 
 namespace jet {
    
-   __header::__header(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global) {
+   __header::__header(coreutils::ZString &in, coreutils::MString &parentOut, Global &global, Tag *parent) : Tag(in, parentOut, global, parent) {
       output = false;
       if(!variableDefined("name"))
 	throw coreutils::Exception("header tag must have name defined.");