Add ability to not load RAILS Stack for rake tasks

Rakefile

# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

require 'rake'
def with_rails
  require File.expand_path('../config/application', __FILE__)
  Sf::Application.send :include, Rake::DSL
  Sf::Application.load_tasks
end
def without_rails
  Dir[File.expand_path("../lib/tasks/", __FILE__) + '/*.rake'].each do |file|
    begin
      load file
    rescue LoadError
      puts 'Load Err.' + $!.inspect
    rescue
      puts 'random one'
    end
  end
  
end

if ENV['DONT_LOAD_RAILS']
  without_rails
else
  with_rails
end

module ::RakeFileUtils
  extend Rake::FileUtilsExt
end

unless ENV['DONT_LOAD_RESQUE']
  require 'resque/tasks'
  require 'resque_scheduler/tasks'
end