Merge pull request kevinlawler#610 from gitonthescene/master

Fixes kevinlawler#609.  Fix doc for move to _draw

clearer

reverse out changes make for issue 574

fix kevinlawler#581: \\[cmd] fails

fix kevinlawler#536: Loading and Saving a text file

minor notation fix

Merge pull request kevinlawler#541 from Crestwave/haiku

Add support for Haiku

update Windows version

fix for build using MINGW-10.0 with msys2

fix for build using MINGW-10.0 with msys2