RFC: notmuch-cache.el: simple caching of MIME parts

diff --git a/23/b009ba7aa51392d53c349bddf75b83e8a87301 b/23/b009ba7aa51392d53c349bddf75b83e8a87301
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+To: notmuch@notmuchmail.org\r
+Subject: RFC: notmuch-cache.el: simple caching of MIME parts\r
+User-Agent: Notmuch/0.18.1 (http://notmuchmail.org) Emacs/24.3.1\r
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+From: David Edmondson <dme@dme.org>\r
+Date: Tue, 07 Oct 2014 08:53:47 +0100\r
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+\r
+--=-=-=\r
+Content-Type: text/plain\r
+\r
+I've been using remote-notmuch over a 3G connection quite a lot\r
+recently. Dragging down the same MIME part more than once is annoying,\r
+so here is a very simple filesystem based cache of MIME parts for\r
+notmuch. It's integrated using defadvice for now, but a cleaner approach\r
+is obviously possible.\r
+\r
+No suggestion that this should be integrated - it's just a toy to prompt\r
+discussion.\r
+\r
+--=-=-=\r
+Content-Type: application/octet-stream\r
+Content-Disposition: attachment; filename=notmuch-cache.el~\r
+Content-Transfer-Encoding: base64\r
+\r
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+ZXJuYWwK\r
+--=-=-=--\r