rails_5.2.gemfile in conversejs-3.6.0

- old
+ new

@@ -1,7 +1,21 @@
 # This file was generated by Appraisal
 
 source "https://rubygems.org"
 
+gem "appraisal", "~> 2.4"
+gem "bundler", "~> 2.3"
+gem "countless", "~> 1.1"
+gem "guard-rspec", "~> 4.7"
+gem "rails", ">= 5.2"
+gem "rake", "~> 13.0"
+gem "rspec", "~> 3.12"
+gem "rspec-rails", "~> 5.1"
+gem "rubocop", "~> 1.28"
+gem "rubocop-rails", "~> 2.14"
+gem "rubocop-rspec", "~> 2.10"
+gem "simplecov", ">= 0.22"
+gem "yard", ">= 0.9.28"
+gem "yard-activesupport-concern", ">= 0.0.1"
 gem "railties", "~> 5.2.0"
 
 gemspec path: "../"