1.0.0 updates

Assorted fixes and enhancements. Comments, @kainosnoema?
The reason I'm getting `array` as the key for ActiveRecord::Relations is because this line turns the resource into an Array, so the call to `Helper.resource_name` below isn't able to determine the correct root key. I'm pretty sure we don't even need to set the `resource` variable here, so removing that should fix things.