Upgrade to Rails 5

Closes #377

.codeclimate.yml

@@ -28,7 +28,6 @@ exclude_patterns:
   - "bin/"
   - "config/"
   - "db/"
-  - "lib/action_controller/"
   - "lib/core_ext/"
   - "lib/daemons/"
   - "lib/gem_ext/"

.travis.yml

@@ -22,8 +22,6 @@ before_script:
   - "curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter"
   - "chmod +x ./cc-test-reporter"
   - "./cc-test-reporter before-build"
-script:
-  - "bundle exec rake test"
 after_script:
   - "./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT"
 services:

Gemfile

@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 
 # core
 gem 'iso8601',      '0.8.6' # for dates and times
-gem 'rails',        '4.2.11.1' # when update, all initializers eis_custom files needs check/update
+gem 'rails', '~> 5.0.7'
 gem 'rest-client'
 gem 'uglifier'
 
@@ -68,7 +68,6 @@ gem 'daemons-rails', '1.2.1'
 gem 'que-web',       '0.4.0'
 gem 'pdfkit'
 gem 'jquery-ui-rails', '5.0.5'
-gem 'active_model-errors_details' # Backport from Rails 5, https://github.com/rails/rails/pull/18322
 gem 'airbrake'
 
 gem 'company_register', github: 'internetee/company_register', branch: :master