Add .gitignore to ignore emacs backup files
Add .gitignore to ignore emacs backup files

Change-Id: I36f9aeadbd9db11be57d9d90a117946650429380
Reviewed-on: http://review.couchbase.org/50110
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Tested-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>

mnunberg/subjson,mnunberg/subjson