test with updated ruby versions and run cucumber

bonus Rakefile updates

Signed-off-by: Thom May <thom@may.lt>

.travis.yml

@@ -11,9 +11,11 @@ before_install:
   - bundle --version
   - gem --version
 rvm:
-  - 2.1
-  - 2.2
+  - 2.1.10
+  - 2.2.5
+  - 2.3.1
 
 script:
   - bundle exec chefstyle
   - bundle exec rake spec
+  - bundle exec rake features

Rakefile

@@ -1,16 +1,8 @@
-require "rake"
-require "rubygems/package_task"
+require "bundler/gem_tasks"
 require "rdoc/task"
-require "yaml"
 require "rspec/core/rake_task"
 require "cucumber/rake/task"
 
-gemspec = eval(IO.read("mixlib-log.gemspec"))
-
-Gem::PackageTask.new(gemspec) do |pkg|
-  pkg.gem_spec = gemspec
-end
-
 RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.pattern = "spec/**/*_spec.rb"
 end
@@ -30,3 +22,13 @@ end
 Cucumber::Rake::Task.new(:features) do |t|
   t.cucumber_opts = "--format pretty"
 end
+
+begin
+  require "chefstyle"
+  require "rubocop/rake_task"
+  RuboCop::RakeTask.new(:style) do |task|
+    task.options += ["--display-cop-names", "--no-color"]
+  end
+rescue LoadError
+  puts "chefstyle/rubocop is not available.  gem install chefstyle to do style checking."
+end