Earlier this year, my colleague wrote about how we've started using CasperJS at Lullabot to perform regression testing. I didn't have much chance to dig into it until recently, when we decided to implement some tests for Drupalize.Me. So far, I'm really enjoying CasperJS—except when something in my test simply doesn't work, and I spend hours asking CasperJS to take screenshots using console.log(), trying to discover what's happening. Fed up with this process, I wanted a debugger...