title: How to toggle line numbers with a keyboard command in Sublime Text 2?
body: <p>In Sublime Text 2, you can turn line numbers on and off using the <code>line_numbers</code> setting, but there isn't an equivalent <code>toggle_line_numbers</code> command you can bind to a keystroke (as there is for, say, <code>toggle_tabs</code> to toggle file tabs). So is there another way to configure it so I can toggle line numbers at a keystroke?</p>