gnucash 4.3-string-freeze: Multiple changes pushed

[John Ralls]

       was  https://github.com/Gnucash/gnucash/tree/90da1a81758eef2599bb1844a8aa7ec4e396af80


tag 4.3-string-freeze

String Freeze For GnuCash 4.3.
2b01bde2b6808d09a6ca9ef676ca2384fb005bb8 Merge Christian Wehling's 'gnucash-flicker' into maint.