Just creates a rake task that does the same as `db:migrate` for a different directory. Uses the same schema migrations table that migrations use. We don't migrate down for iterations.

iteration.rake

namespace :iteration do
  
  desc "Runs the tasks for the current iteration"
  task :current => 'iteration:migrate'

  desc 'Runs the unrun iteration tasks'
  task :migrate => :environment do
    mig = ActiveRecord::Migrator.new(:up, File.join(Rails.root, 'db', 'iterations'))
    mig.migrate
  end
end