second attempt at asset pipelines
Reorder priority of asset dirs. Don't continuously run asset pipeline in non-development mode.
Force rerendering all assets when the asset pipeline processor stack changes.
cleanup
Sprockets automatically calculates output md5. Don't need to check for changes.
cleanup force render
lower allocation count on reloadable requests
Fix App asset retrieval and AssetPipeline asset_dirs reloading.
Fix to App#wait_on_asset_pipeline
Don't render assets on boot, if unnecessary