valid: Undeprecate xmlAdd*Decl

Fixes #969.

include/libxml/valid.h

@@ -107,7 +107,6 @@ typedef struct _xmlHashTable xmlRefTable;
 typedef xmlRefTable *xmlRefTablePtr;
 
 /* Notation */
-XML_DEPRECATED
 XMLPUBFUN xmlNotation *
 		xmlAddNotationDecl	(xmlValidCtxt *ctxt,
 					 xmlDtd *dtd,
@@ -170,7 +169,6 @@ XMLPUBFUN void
 #endif /* LIBXML_OUTPUT_ENABLED */
 
 /* Element */
-XML_DEPRECATED
 XMLPUBFUN xmlElement *
 		xmlAddElementDecl	(xmlValidCtxt *ctxt,
 					 xmlDtd *dtd,
@@ -206,7 +204,6 @@ XMLPUBFUN xmlEnumeration *
 		xmlCopyEnumeration	(xmlEnumeration *cur);
 
 /* Attribute */
-XML_DEPRECATED
 XMLPUBFUN xmlAttribute *
 		xmlAddAttributeDecl	(xmlValidCtxt *ctxt,
 					 xmlDtd *dtd,

valid.c

@@ -1092,9 +1092,7 @@ xmlFreeElement(xmlElementPtr elem) {
 /**
  * Register a new element declaration.
  *
- * @deprecated Internal function, don't use.
- *
- * @param ctxt  the validation context
+ * @param ctxt  the validation context (optional)
  * @param dtd  pointer to the DTD
  * @param name  the entity name
  * @param type  the element type
@@ -1555,9 +1553,7 @@ xmlFreeAttribute(xmlAttributePtr attr) {
 /**
  * Register a new attribute declaration.
  *
- * @deprecated Internal function, don't use.
- *
- * @param ctxt  the validation context
+ * @param ctxt  the validation context (optional)
  * @param dtd  pointer to the DTD
  * @param elem  the element name
  * @param name  the attribute name
@@ -1918,10 +1914,8 @@ xmlFreeNotation(xmlNotationPtr nota) {
 /**
  * Register a new notation declaration.
  *
- * @deprecated Internal function, don't use.
- *
+ * @param ctxt  the validation context (optional)
  * @param dtd  pointer to the DTD
- * @param ctxt  the validation context
  * @param name  the entity name
  * @param publicId  the public identifier or NULL
  * @param systemId  the system identifier or NULL