Disable debug comments in RTF output (they are visible by default in 
ooffice and abiword)

--- src/rtfdocvisitor.cpp
+++ src/rtfdocvisitor.cpp
@@ -29,8 +29,8 @@
 #include "parserintf.h"
 
 
-#define DBG_RTF(x) m_t << x
-//#define DBG_RTF(x) do {} while(0)
+//#define DBG_RTF(x) m_t << x
+#define DBG_RTF(x) do {} while(0)
 
 RTFDocVisitor::RTFDocVisitor(QTextStream &t,CodeOutputInterface &ci,
                              const char *langExt)