gnucash master: Multiple changes pushed

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/594388b7 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/79765413 (commit)
	from  https://github.com/Gnucash/gnucash/commit/6753b30b (commit)



commit 594388b7656a4776e80a4cd92b9f50d32d70001e
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Sat Sep 14 10:17:56 2019 +0200

    Drop support for gettext older than 0.19.6

commit 797654133b1044da9669a4347ac632e3cfa006a7
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Sat Sep 14 10:08:28 2019 +0200

    Use newer cmake version checks



Summary of changes:
 CMakeLists.txt                                 | 22 +--------
 README.dependencies                            |  5 +--
 common/cmake_modules/GncAddSchemeTargets.cmake |  3 +-
 gnucash/gnome/CMakeLists.txt                   | 62 +++++++++-----------------
 4 files changed, 25 insertions(+), 67 deletions(-)