gnucash unstable: Multiple changes pushed

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash/commit/46428164 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/ee217c61 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/fb26ef64 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/ce715862 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/c6cbac58 (commit)
	from  https://github.com/Gnucash/gnucash/commit/f4965ae2 (commit)



commit 464281644cf2756daf255f030e6a6805182fc88e
Merge: f4965ae ee217c6
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Mon Feb 19 15:25:53 2018 +0100

    Merge branch 'maint' into unstable
    
    Should resolve issue mentioned in PR #277
    Conflicts:
    	libgnucash/app-utils/gnc-sx-instance-model.c: resolved
    	po/de.po: changes in maint ignored

commit ee217c61b23d0dfd51a54048d8fd8ae74018a19a
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Mon Feb 19 12:29:06 2018 +0100

    Make REPORT_ERROR private
    
    amending commit ce71586

commit fb26ef648ed74998e4a25fcdfac282dcd7650c0e
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Mon Feb 19 12:17:53 2018 +0100

    update de.po to commit ce71586
    
    4684 translated messages, 5 untranslated messages.

commit ce715862fe4c8c2c1f2ed1a4a3b6eb3cb37c7606
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Mon Feb 19 11:50:10 2018 +0100

    Mark forgotten error messages in gnc-sx-instance-model.c translatable
    and report them bilingual:
     *  in g_critical untranslated and
     *  in g_list_append translated.

commit c6cbac588ea1f5a8b8ae001f9c8ad94dd5d373a2
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Sun Feb 18 11:38:54 2018 +0100

    Add a TODO note for variadic macros after C++2a standardization



Summary of changes:
 libgnucash/app-utils/gnc-sx-instance-model.c |  75 ++--
 libgnucash/app-utils/gnc-sx-instance-model.h |   1 +
 libgnucash/engine/qoflog.h                   |   5 +
 po/de.po                                     | 620 +++++++++++++++++++++++----
 4 files changed, 577 insertions(+), 124 deletions(-)