Make the Rails 3.2 hack less strict, as it still works with Rails 4
to_hash is now implemented and should be used on the ActiveRecord::Result
Merge remote-tracking branch 'pboling/rails4' into rails4

* pboling/rails4:
  to_hash is now implemented and should be used on the ActiveRecord::Result
  Make the Rails 3.2 hack less strict, as it still works with Rails 4

  * to_hash changes were broken; rewrote code block to use inject
  * added instructions for installing contrib packages under Mac OS X