Scite: add a vertical line at column 80

A tip for the SciTE editor: this is interesting if you want your code to be easy to print and display without horizontal scrolling.

Add the following to the global or user properties file:

edge.column=80
edge.mode=1
edge.colour=#C0DCC0

This is an excerpt of the SciTE documentation for the edge property:

Indicates long lines. The default edge.mode, 0, does not
indicate long lines. An edge.mode of 1 uses a vertical
line to indicate the specified column and an edge.mode
of 2 changes the background colour of characters beyond
that column. For proportional fonts, an edge.mode of 2
is more useful than 1.