fixed part (2) of bug 119535 (wrong alpha case on filenames)

* doc/parsedecl.py, doc/libxml2-refs.xml, doc/API*.html:
  fixed part (2) of bug 119535 (wrong alpha case on filenames)
diff --git a/doc/parsedecl.py b/doc/parsedecl.py
index d29d5f2..dfbbba2 100755
--- a/doc/parsedecl.py
+++ b/doc/parsedecl.py
@@ -703,7 +703,7 @@
     else:
 	target = string.upper(id)
     if hash.has_key(id):
-        module = string.lower(hash[id])
+        module = hash[id]
     else:
         module = 'index'
     file = 'html/libxml-' + module + '.html';