gnucash maint: Multiple changes pushed

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/2290fa7c (commit)
	 via  https://github.com/Gnucash/gnucash/commit/d03dc07b (commit)
	from  https://github.com/Gnucash/gnucash/commit/3bcf57e7 (commit)



commit 2290fa7c22d5c4f45b58968a58c4f0b8b21179ec
Author: John Ralls <jralls at ceridwen.us>
Date:   Sat Nov 7 16:22:18 2020 -0800

    Fix exception when converting to decimal values that reduce to N/1.
    
    Before this the loop wouldn't terminate until the denominator had been
    reduced to 0 and trying to create a GncRational with a 0 denominator
    throws.

commit d03dc07b8d2bc701a5a9cdfc6928725b32aefd45
Author: John Ralls <jralls at ceridwen.us>
Date:   Sat Nov 7 13:20:22 2020 -0800

    Remove redundant and incorrectly named constant.



Summary of changes:
 libgnucash/engine/gnc-numeric.cpp            |  2 +-
 libgnucash/engine/gnc-timezone.cpp           |  6 ++----
 libgnucash/engine/test/gtest-gnc-numeric.cpp | 12 ++++++++++++
 3 files changed, 15 insertions(+), 5 deletions(-)