gnucash master: Multiple changes pushed

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/280ed47d (commit)
	 via  https://github.com/Gnucash/gnucash/commit/cae8ecde (commit)
	 via  https://github.com/Gnucash/gnucash/commit/01339a78 (commit)
	from  https://github.com/Gnucash/gnucash/commit/274f0fd5 (commit)



commit 280ed47d9d99053f8369962099b4656f8cd662d2
Merge: 274f0fd cae8ecd
Author: John Ralls <jralls at ceridwen.us>
Date:   Thu Sep 6 16:24:04 2018 -0700

    Merge David Cousins's Bug_796778 into master.
    
    This resolves Bug 796778 - Feature Request: Select multiple transactions
    for assignment to a given transfer account when importing OFX (and
    similar).

commit cae8ecde8f9ddd615ff47c783ce8136395bd71a9
Author: David Cousens <davidcousens at bigpond.com>
Date:   Thu Sep 6 12:43:34 2018 +1000

    Changes to import-main-matcher.c and dialog-import.glade to implement multiple selection and assignment of a destination account to the selection.

commit 01339a782c91a8d931cc9d7462ddce19afc60635
Author: David Cousens <davidcousens at bigpond.com>
Date:   Tue Aug 28 22:36:42 2018 +1000

    Stage 1 Extracting code for assigning a transfer account from gnc_gen_trans_row_activated_cb() into a new function
    gnc_gen_trans_assign_transfer account() and calling that function from within gnc_gen_trans_row_activated_cb().
    Tested and working as per the original code.



Summary of changes:
 gnucash/gtkbuilder/dialog-import.glade      |  31 +++-
 gnucash/import-export/import-main-matcher.c | 270 ++++++++++++++++++++++++----
 2 files changed, 266 insertions(+), 35 deletions(-)