Key mappings was incorrect. Now uses correct detection. Fixes #2959723
if anyone dislikes the change they should know who to blame
scrolling should not occur beyond content (can happen with a track pad)
* added changes to changelog and my name in the credits list
* Mac settings are now stored in $HOME/Library/jEdit. Old settings are migrated to new location automagicly.
* icon path should match, not just filename. fixes #2045733.
* enable support for horizontal scrolling through shift+scroll (#2308694)
Removed symlinking due to Apple update causing problems with symlinks. Fixes #2127295