Ruby >= 2.2.2 required

.travis.yml

@@ -3,9 +3,9 @@ language: ruby
 sudo: false
 
 rvm:      
-  - 2.3
+  - 2.2.2
 
-install: "echo skip bundle install"
+install: 'echo skip bundle install'
 
 script:
   - export WORKSPACE=`pwd`/workspace

after_init.rb

@@ -69,7 +69,7 @@ else
   end
 end
 
-ActionDispatch::Reloader.to_prepare do
+ActiveSupport::Reloader.to_prepare do
   # Rubyzip configuration
   Zip.unicode_names = true