Update config with rails app:update
Update schema.rb rails db:migrate
Add puma
Make jobs and models inherit from ApplicationJob and ApplicationRecord
Update acts_as_list to 0.9.7 in order to fix
"undefined method `sanitize_sql_hash_for_conditions'" error
Update web-console to 2.3.0 to fix a 500 internal server error
Replace before_filter with before_action
Add rails-controller-testing gem
Add prepend: :true to protect_from_forgery in ApplicationController to
avoid ActionController::InvalidAuthenticityToken exceptions
Remove activeuuid
Update formtastic to 3.1.5 to fix deprecation warnings and issues
with the Input class
Update ahoy_matey to 1.6.0
Update cancancan to 2.0.0 to fix issues with malformed sql queries
Fix program spec
Fix issue with the picture being nil in admin/Organizations#new and #edit
and Organizations#show
Fix ActiveRecord::Base.raise_in_transactional_callbacks= deprecation
warning by removing an unnecessary line in application.rb
Fix failing versions specs
Prevent excpetion at user subscription when already is subscribed to a conference and add hanling to the similar unsubscribe event.
remove double validation at app/models/subscription.rb
update subscription_controller_spec
