remove sampling model
carrierwave SoundUploader
User.find_or_create_from_auth now takes an auth object instead of a hash
Revert "carrierwave SoundUploader"

This reverts commit a864933b44addbd1f88339155234d9a3a443fca0.
local storage strategy
ignore uploads directory
configure storage strategies, StorageMethods mixin
remove hash rockets
upload model