Add unidata_version. Bump generator version number.
diff --git a/Modules/unicodedata.c b/Modules/unicodedata.c
index c5ba6fc..71fdcb0 100644
--- a/Modules/unicodedata.c
+++ b/Modules/unicodedata.c
@@ -881,6 +881,8 @@
     if (!m)
         return;
 
+    PyModule_AddStringConstant(m, "unidata_version", UNIDATA_VERSION);
+
     /* Export C API */
     v = PyCObject_FromVoidPtr((void *) &hashAPI, NULL);
     if (v != NULL)