Version 1.0.16-  2023-02-20     Qt.core.   
Version 1.0.15-  2022-04-13     Qt6 Compability; Minimum Calibre Version now 6.0.0
Version 1.0.14-  2022-02-17     Qt6 Compatibility.  Minimum Calibre Version 5.99.4.
Version 1.0.13-  2020-12-20     Miscellany.
Version 1.0.12-  2020-07-21     Qt tweaks.
Version 1.0.11-  2019-12-28     Technical changes after Python 3.8 testing with Calibre 4.99.2; job execution speed greatly improved.
Version 1.0.10-  2019-04-30     Python 3 and Calibre 3.41.3+ pdf-to-html compatibility.
Version 1.0.9 -  2018-10-11     Obfuscation of obscenities now optional.
Version 1.0.8 -  2018-03-20     OSX-only bugfix.
Version 1.0.7 -  2017-05-05     Allow themes with user-defined icons.
Version 1.0.6 -  2016-05-25     Technical tweaks.
Version 1.0.5 -  2015-10-31     Miscellaneous tweaks.
Version 1.0.4 -  2015-10-01     Miscellaneous tweaks.
Version 1.0.3 -  2015-08-31     Technical tweaks.
Version 1.0.2 -  2015-08-25     Miscellaneous tweaks.
Version 1.0.1 -  2015-08-08     The 'Options' Tab now has scroll-bars, and the GUI dialog was changed to allow user resizing and relocation that will be 'remembered'.
Version 1.0.0 -  2015-08-05     Initial release.