Moved keywords from local variables to keywords map.

__include.cpp

@@ -5,13 +5,13 @@
 namespace jet {
    
    __include::__include(coreutils::ZString &in, coreutils::MString &parentOut, Global &global, Tag *parent, Tag *local) : Tag(in, parentOut, global, parent, local) {
-      if(!variableDefined("file"))
+      if(!keywordDefined("file"))
 	throw coreutils::Exception("file keyword must be specified.");
       if(hasContainer)
 	throw coreutils::Exception("include tag should not have a container.");
       hasContainer = true;
       resolveKeyword("file");
-      coreutils::File file(variables["file"]);
+      coreutils::File file(keywords["file"]);
       file.read();
       container = file.asZString();
       try {