Gemfile.5.0.pg in gemika-0.3.0

- old
+ new

@@ -1,9 +1,16 @@
 source 'https://rubygems.org'
 
+# Ruby
+ruby '>= 2.2'
+
+# Runtime dependencies
 gem 'activerecord', '~>5.0.0'
 gem 'rspec', '~>3.5'
 gem 'pg', '~>0.18.4'
 
+# Development dependencies
 gem 'rake'
+gem 'database_cleaner'
 
+# Gem under test
 gem 'gemika', :path => '..'