gnucash maint: Release GnuCash 3.11

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/0fe9ba79 (commit)
	from  https://github.com/Gnucash/gnucash/commit/47e2fb9d (commit)



commit 0fe9ba79e21d0545f4c1f9eb373a9450803a83c4
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Jun 26 17:10:45 2020 -0700

    Release GnuCash 3.11



Summary of changes:
 CMakeLists.txt |  2 +-
 NEWS           | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+), 1 deletion(-)