#3 Tab widths

[zarxrax]

In the Program Settings > Text 2 menu, you can set the tab width in terms of spaces.
Avsp supports multiple fonts for different syntax highlighting, but the tab width is always determined according to the "Default" font (as defined in the "Font and Colors" dialog).
This causes a problem when the "Use monospaced font" option is enabled, because it continues to use the spacing of the default font rather than the monospace font.