- Makefile.am: cleanup when --without-debug is specified

- xinclude.c xpath.c xpathInternals.h xpointer.c: cleanup
  w.r.t. --without-debug and other include points
- catalog.h testCatalog.c: a bit of cleanup and prepare for XML
  Catalogs
- configure.in entities.h tree.h HTMLparser.c: removed
  --without-corba, made the _private field mandatory
Daniel

include/libxml/entities.h

@@ -35,9 +35,7 @@ typedef enum {
 typedef struct _xmlEntity xmlEntity;
 typedef xmlEntity *xmlEntityPtr;
 struct _xmlEntity {
-#ifndef XML_WITHOUT_CORBA
     void           *_private;	        /* for Corba, must be first ! */
-#endif
     xmlElementType          type;       /* XML_ENTITY_DECL, must be second ! */
     const xmlChar          *name;	/* Attribute name */
     struct _xmlNode    *children;	/* NULL */