Include Rspec in development as well
Define a default rake task in case Rspec is available (test + development)
No need to bug bundler. Rspec is already loaded
Development dependencies belong in Gemfile, not gemspec
Hornet is no app, just a gem. No need to declare groups really
Merge pull request #11 from nielsbuus/add-default-rake-task-for-hornet

Add default rake task for hornet