Catch all exceptions and airbrake them

util.rb

require 'airbrake'

Airbrake.configure do |config|
  config.api_key = AIRBRAKE_API_KEY 
end

at_exit {
  if $!
    e = $!
    Airbrake.notify(
      :backtrace => e.backtrace,
      :error_class => e.class,
      :error_message => e.message
    )
  end
}