Update berkshelf to 4.0

linc01n · linc01n · commit 36f5cd3c993e · 2015-10-09T00:15:58.000+08:00
Fix travis "Faraday::Error: :gzip is not registered on Faraday::Response"
diff --git a/Gemfile b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 gem 'rake'
 
 group :test, :integration do
-  gem 'berkshelf', '~> 3.0'
+  gem 'berkshelf', '~> 4.0'
 end
 
 group :test do
