* parser.c: fix a bug raised by the Mips compiler.
* include/libxml/SAX.h include/libxml/parser.h: move the
  SAXv1 block definitions to parser.h fixes bug #123380
* xmlreader.c include/libxml/xmlreader.h: reinstanciate
  the attribute and element pool borken 2 commits ago.
  Start playing with an entry point to preserve a subtree.
* entities.c: remove a warning.
Daniel