new API building Python script, does the C parsing directly, generates a

* doc/apibuild.py doc/libxml2-api.xml doc/Makefile.am: new API
  building Python script, does the C parsing directly, generates
  a better API description including structure fieds defs and
  enums. Still a couple of bugs, but good enough for the python
  wrappers now.
* DOCBparser.c SAX.c nanohttp.c parser.c parserInternals.c tree.c
  valid.c xmlIO.c xmlmemory.c xmlreader.c xmlregexp.c xmlschemas.c
  include/libxml/schemasInternals.h include/libxml/tree.h: more
  cleanup based on the python analysis script reports.
* libxml.spec.in: make sure the API XML description is part of the
  devel package.
Daniel
diff --git a/xmlschemas.c b/xmlschemas.c
index 2312bfa..9bafb2d 100644
--- a/xmlschemas.c
+++ b/xmlschemas.c
@@ -5401,7 +5401,7 @@
  * @ctxt:  a schema validation context
  * @err:  the error function
  * @warn: the warning function
- * @ctxt: the functions context
+ * @ctx: the functions context
  *
  * Set the error and warning callback informations
  */