Simpler Rakefile, dropping cucumber, using Bundler a bit more.

Rakefile

@@ -1,17 +1,10 @@
-#!/usr/bin/env rake
-require "bundler/gem_tasks"
-require 'appraisal'
-require 'rspec/core/rake_task'
-require 'cucumber'
-require 'cucumber/rake/task'
+require 'bundler/setup'
 
-RSpec::Core::RakeTask.new(:spec) do |t|
-  t.rspec_opts = ["-c", "--format progress"]
-end
+Bundler::GemHelper.install_tasks
 
-Cucumber::Rake::Task.new(:features) do |t|
-end
+require 'appraisal'
+require 'rspec/core/rake_task'
 
-task :all_tests => [:spec, :features]
+RSpec::Core::RakeTask.new
 
-task :default => :all_tests
+task :default => :spec