[geary] (3 commits) Non-fast-forward update to branch wip/29-ms-breaks-plain-sigs

[Michael Gratton <mjog src gnome org>]

The branch 'wip/29-ms-breaks-plain-sigs' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  fdb3f4f... Fix MS mailers munging plain-text signatures in HTML body p

Commits added to the branch:

  b2cb097... IMAP flags should always be atoms, so should never be quote (*)
  0659418... Merge branch 'wip/40-backslash-in-folder-name' into 'master (*)
  f3e8b26... Fix MS mailers munging plain-text signatures in HTML body p

(*) This commit already existed in another branch; no separate mail sent