view .svn/pristine/6d/6dba3f08ae1fe5df2485633031e4b22aeed22b6d.svn-base @ 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 AddUsersType < ActiveRecord::Migration
  def self.up
    add_column :users, :type, :string
    User.update_all "type = 'User'"
  end

  def self.down
    remove_column :users, :type
  end
end