Add missing files in tarball

Fix MANIFEST.in to include all files in released tarballs.
Note that tools/rfc.sh is ignored since it's only for (deprecated)
gerrit support. Fixes bug 912193.

Change-Id: Ic9952220a67d5583e639fcb9e74f472dd9f0fdef

MANIFEST.in

@@ -1,6 +1,9 @@
 include AUTHORS LICENSE .functests .unittests .probetests test/__init__.py
-include ChangeLog
-graft doc  
+include CHANGELOG
+include babel.cfg
+graft doc
 graft etc
+graft locale
 graft test/functional
 graft test/probe
+graft test/unit