- doc/encoding.html doc/xml.html: added I18N doc

- encoding.[ch] HTMLtree.[ch] parser.c HTMLparser.c: I18N encoding
  improvements, both parser and filters, added ASCII & HTML,
  fixed the ISO-Latin-1 one
- xmllint.c testHTML.c: added/made visible --encode
- debugXML.c : cleanup
- most .c files: applied patches due to warning on Windows and
  when using Sun Pro cc compiler
- xpath.c : cleanup memleaks
- nanoftp.c : added a TESTING preprocessor flag for standalong
  compile so that people can report bugs more easilly
- nanohttp.c : ditched socklen_t which was a portability mess
  and replaced it with unsigned int.
- tree.[ch]: added xmlHasProp()
- TODO: updated
- test/ : added more test for entities, NS, encoding, HTML, wap
- configure.in: preparing for 2.2.0 release
Daniel

xmlmemory.c

@@ -325,7 +325,7 @@ xmlMemStrdupLoc(const char *str, const char *file, int line)
 #ifdef MEM_LIST
     debugmem_list_add(p);
 #endif
-    s = HDR_2_CLIENT(p);
+    s = (char *) HDR_2_CLIENT(p);
     
     if (xmlMemStopAtBlock == block) xmlMallocBreakpoint();
 
@@ -382,7 +382,7 @@ void
 xmlMemContentShow(FILE *fp, MEMHDR *p)
 {
     int i,j,len = p->mh_size;
-    const char *buf = HDR_2_CLIENT(p);
+    const char *buf = (const char *) HDR_2_CLIENT(p);
 
     for (i = 0;i < len;i++) {
         if (buf[i] == 0) break;