This change implements the following gettext features, as
discussed recently in python-dev:

In _locale module:

- bind_textdomain_codeset() binding

In gettext module:

- bind_textdomain_codeset() function
- lgettext(), lngettext(), ldgettext(), ldngettext(),
  which return translated strings encoded in
  preferred system encoding, if
  bind_textdomain_codeset() was not used.
- Added equivalent functionality in translate()
  function and catalog classes.

Every change was also documented.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 4918ab7..5e1a43c 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -37,6 +37,9 @@
 /* Define this if your time.h defines altzone. */
 #undef HAVE_ALTZONE
 
+/* Define to 1 if you have the `bind_textdomain_codeset' function. */
+#undef HAVE_BIND_TEXTDOMAIN_CODESET
+
 /* Define to 1 if you have the <bluetooth/bluetooth.h> header file. */
 #undef HAVE_BLUETOOTH_BLUETOOTH_H