[geary: 5/5] Merge branch 'mjog/589-attachment-keyword-check' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit 647ef90cfce11342f8174e6aa7578f1e4be2b7d8
Merge: 3af5e2eb 17a23bc5
Author: Michael Gratton <mike vee net>
Date:   Tue Oct 8 22:32:52 2019 +0000

    Merge branch 'mjog/589-attachment-keyword-check' into 'mainline'
    
    Attachment keyword fixes
    
    Closes #589
    
    See merge request GNOME/geary!334

 src/client/composer/composer-widget.vala |  19 ++++-
 test/js/composer-page-state-test.vala    | 137 +++++++++++++++++++++----------
 ui/composer-web-view.js                  | 123 ++++++++++++++-------------
 3 files changed, 174 insertions(+), 105 deletions(-)
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