Fix Railtie

[meniku]

In some configurations "rails server" refuses to start with: "/Users/nkuebler/projects/viewr/vendor/plugins/babilu/lib/babilu.rb:51:in `block in class:Railtie': You have a nil object when you didn't expect it! (NoMethodError)"

A possible fix is to change 'balibu.rb' from

 class Railtie < Rails::Railtie
    config.before_configuration do
      config.action_view.javascript_expansions[:defaults] ||= [] << 'locales'
    end
  end if defined?(Rails::Railtie)

to

 class Railtie < Rails::Railtie
    config.before_configuration do
      config.action_view.javascript_expansions ||= {}
      config.action_view.javascript_expansions[:defaults] ||= [] << 'locales'
    end
  end if defined?(Rails::Railtie)