view db/migrate/20110331152140_add_has_welcome_page_to_projects.rb @ 1087:74407a04925c issue_540

* (publication.rb) - fixed the acts_as_activity query (see diff to previous commit) - not returning duplicate results any longer; added the visible scope to the publication model;
* (init.rb) - created a new public permission - view_publication.

class AddHasWelcomePageToProjects < ActiveRecord::Migration
  def self.up
    add_column :projects, :has_welcome_page, :boolean
  end

  def self.down
    remove_column :projects, :has_welcome_page
  end
end