Gemfile in data_cleansing-0.3.2 vs Gemfile in data_cleansing-0.4.0

@@ -1,5 +1,7 @@
 source 'https://rubygems.org'
+gem 'thread_safe'
+gem 'semantic_logger'
 
 group :test do
   gem "shoulda"
 
   gem "activerecord"
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