gnucash master: Multiple changes pushed

[Robert Fewell]

Updated	 via  https://github.com/Gnucash/gnucash/commit/41af84b9 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/9fed4b46 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/3556182a (commit)
	from  https://github.com/Gnucash/gnucash/commit/fee1bf00 (commit)



commit 41af84b93751087366f82f2d0d5da24970b5a673
Author: Robert Fewell <14uBobIT at gmail.com>
Date:   Sun Mar 1 12:34:19 2020 +0000

    Only show invalid mappings dialog once
    
    When you select the type of information to display, the invalid mapping
    dialog is shown if necessary on each occasion so this commit changes
    that to show it once and then you can use the added button.

commit 9fed4b464fe259be31d97e97452524ba18a54cc7
Author: Robert Fewell <14uBobIT at gmail.com>
Date:   Sun Mar 1 11:59:04 2020 +0000

    Bug 797612 - Add a dialog to the imap_dialog to show invalid maps
    
    When imap_dialog is opened, check the tot_invalid_maps value to see if
    there were any invalid maps and present a dialog to allow the user to
    remove them now, if not add a button to imap_dialog so it can be done
    later.

commit 3556182ab5f6e9bf5970beff0e05ae07ebaaf056
Author: Robert Fewell <14uBobIT at gmail.com>
Date:   Sun Mar 1 11:32:04 2020 +0000

    Add the model to the imap_dialog structure for convenience



Summary of changes:
 gnucash/gnome/dialog-imap-editor.c          | 350 +++++++++++++++++++++++-----
 gnucash/gtkbuilder/dialog-imap-editor.glade |  46 +++-
 2 files changed, 330 insertions(+), 66 deletions(-)