rails5.1.7.gemfile in comma-4.4.0

- old
+ new

@@ -1,11 +1,14 @@
 # This file was generated by Appraisal
 
 source "https://rubygems.org"
 
 gem "coveralls", :require => false
-gem "rubocop", :require => false
+gem "rubocop", "~> 0.67.2", :require => false
+gem "rubocop-performance", :require => false
+gem "sqlite3", "~> 1.3.11"
 gem "rails", "5.1.7"
 gem "rspec-rails"
+gem "sprockets", "< 4"
 gem "test-unit"
 
 gemspec :path => "../"