Gemfile in serviceworker-rails-0.2.0 vs Gemfile in serviceworker-rails-0.3.0

@@ -1,8 +1,12 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in serviceworker-rails.gemspec
 gemspec
 
-gem "pry-byebug", platforms: [:ruby_23]
-gem "guard"
-gem "guard-minitest"
+group :development, :test do
+  unless ENV["TRAVIS"]
+    gem "pry-byebug", platforms: [:ruby_23]
+    gem "guard"
+    gem "guard-minitest"
+  end
+end