loomio/loomio — pull request #1591 by nando (2014-07-26 12:28:26+00:00)
Title: Pixel image in "missed yesterday" email to mark summary as read

Required as part of this issue:

https://github.com/loomio/loomio/issues/1565

It sends invisible single pixel image in "missed yesterday" email to mark summary as read automatically for people who have images enabled.