This PR adds development dependencies to the gemspec, so future contributors don't have to play whack-a-mole with adding dependencies.
You may want to consider in the future managing your gemspec by hand instead of using echoe. There is no need to generate gemspecs with alternative tools, and it makes dependency resolution a PITA when the Gemfile uses the gemspec as your source, but the gemspec is being generated by a tool that's not already in the gemspec. But, for now, this will suffice.
I do agree that echoe isn't really required, it's just the way I started the gem. I am planning a huge overhaul soon, so you can guarantee echo will disappear then.
This PR adds development dependencies to the gemspec, so future contributors don't have to play whack-a-mole with adding dependencies.
You may want to consider in the future managing your gemspec by hand instead of using echoe. There is no need to generate gemspecs with alternative tools, and it makes dependency resolution a PITA when the Gemfile uses the gemspec as your source, but the gemspec is being generated by a tool that's not already in the gemspec. But, for now, this will suffice.