Include emacs and vim contribs in source tarball

This will enable downstream distros to package them.

Signed-off-by: Zane Bitter <zbitter@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@gmail.com>

MANIFEST.in

diff --git a/MANIFEST.in b/MANIFEST.in
index c94eef6..a80f013 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -9,6 +9,9 @@
 include contrib/*.sh
 include contrib/*.bash
 include contrib/stg-*
+include contrib/Makefile
+include contrib/stgit.el
+recursive-include contrib/vim *.vim
 include t/t*.sh t/t*/* t/Makefile t/README
 include Documentation/*.txt Documentation/Makefile Documentation/*.conf
 include Documentation/build-docdep.perl Documentation/callouts.xsl