Workaround for bizarre muxml misbehaviour at the end of file.

Newer stdlib versions seem to have changed their iostream flags
behaviour when the end of file has been reached, which muxml chokes on.
This is not really an elegant solution, but it appears to work for our
uses.

muxml.cpp

@@ -225,7 +225,10 @@ bool MuXML::read(std::istream& in,XMLNode* parent,const int& level,const char& c
 	 while ((c == ' ' || c == '\t' || c == '\n') && in.good() == true) in >> c;
       }
 
-      if (in.good() == false) return false;
+      if (in.good() == false && in.eof() == false) return false;
+      if (in.eof() == true) {
+         return true;
+      }
    } while (success == true);
    return true;
 }