Group descriptions formatter

[Dan Franko]

I'm looking to do exactly what is described as the solution in the stack overflow question below, which is to be able to group my descriptions in the html report output.  What I'm really looking for is how that's actually done in a custom formatter without reinventing the wheel.

http://stackoverflow.com/questions/14488976/how-to-group-rspec-descriptions-in-the-html-output-result

Thanks!