[geary: 2/2] Merge branch 'print-headers' into 'master'

[Michael Gratton <mjog src gnome org>]

commit 70d56b179aa5abe9342168f0a98577df1a7caed1
Merge: af91204c 698f61e6
Author: Michael Gratton <mike vee net>
Date:   Sun Sep 30 13:23:01 2018 +0000

    Merge branch 'print-headers' into 'master'
    
    Print common headers when printing messages
    
    See merge request GNOME/geary!47

 .gitlab-ci.yml                                     |  4 +--
 INSTALL                                            |  4 +--
 debian/control                                     |  2 ++
 meson.build                                        |  1 +
 .../conversation-viewer/conversation-email.vala    | 37 +++++++++++++++++++---
 src/client/meson.build                             |  1 +
 ui/conversation-web-view.css                       | 35 ++++++++++++++++++++
 ui/conversation-web-view.js                        | 19 +++++++++++
 8 files changed, 95 insertions(+), 8 deletions(-)
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