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Fix bug #2825102; The full contents of the commander's input is now run when Execute is pressed, instead of only the first 255 chars.

The problem was that getcombobox() only read MAX_BUFFER_SIZE bytes into its input string. Since this was only called in one place, my fix was to inlined the function and have it read the entire buffer.

Add a procedure to help test syntax colorization.

Remove the keyword lists because the solution was not internationalized. If I do color known procedures differently, it will need a completely different implementation that dynamically computes the set of all primitives and library routines for the current locale.

Update with latest changes from Igor, including a translation for Redo.

Fix bug #2819812; Buttons created with BUTTONCREATE now respond to being pressed with the keyboard.

Add some UI automation for pressing buttons that are created with BUTTONCREATE as a regression test for bug #2819812.

Fix a regression where using the up arrow to select a line that contains non-ascii characters at the end would copy everything except those characters. The problem was that Borland's isspace() does not work properly for values greater than 127. The solution is to provide my own implementation that does.

Remove some unused functions that use macros from ctype.h, which I just learned do not properly handle characters greater than 127 in Borland's compiler.

Fix some minor colorization problems with the handling of |

Add a regression tests for bug #2819806, which is that NUMBERP on a non-ASCII word used to outputs TRUE.