applied a patch from Kjartan Maraas to fix some typos Daniel

* ChangeLog tree.c doc/libxml-doc.el doc/libxml2-api.xml: applied
  a patch from Kjartan Maraas to fix some typos
Daniel
diff --git a/tree.c b/tree.c
index 8bb0625..e19817a 100644
--- a/tree.c
+++ b/tree.c
@@ -5441,7 +5441,7 @@
  * This does the entity substitution.
  * This function looks in DTD attribute declaration for #FIXED or
  * default declaration values unless DTD use has been turned off.
- * NOTE: this function acts independantly of namespaces associated
+ * NOTE: this function acts independently of namespaces associated
  *       to the attribute. Use xmlGetNsProp() or xmlGetNoNsProp()
  *       for namespace aware processing.
  *