Various contribs: - xpath.c: patch for normalize-string()

Various contribs:
- xpath.c: patch for normalize-string() substring-before(),
  substring-after() and translate() functions from Bjorn Reese
  <breese@mail1.stofanet.dk>
- libxml.m4 Makefile.am: added libxml.m4 from Debian ?
  Fredrik Hallenberg <hallon@lysator.liu.se>
- TODO: updated
Daniel
diff --git a/TODO b/TODO
index 1fd2e44..0b1dd36 100644
--- a/TODO
+++ b/TODO
@@ -35,6 +35,9 @@
   the old document, for example namespace declarations or entities
   references can also be a nasty problem, far more than updating the
   doc values.
+- jamesh suggestion: SAX like functions to save a document ie. call a
+  function to open a new element with given attributes, write character
+  data, close last element, etc
 
 TODO:
 =====