BackStop fix to allow backspace to work in node-inspector

I was having trouble in [node-inspector](https://github.com/node-inspector/node-inspector) with my backspace key not working. Here's a fix: (Use https://github.com/mjhm/BackStop/compare/cranman:master...master?w=1 to compare without the indenting change.)

BTW Thank you for your plugin, it's helped keep me sane for years.