switch over the direct s3 upload
switch over to paperclip
remove carrierwave files
setup paperclip, move variables
fix syntax error
make class instead of instance method call
initialize attachment
fix exteral url regexp, file name
fix variable reference
parse zencoder response
fix js, change schema for paperclip
fix object path variable, filename creation
fix challenge show page
add permissions option
create tmp urls for uploads
remove flash, being rest of flow
move uploading to edit, fix date setting
fix syntax error
move upload form
remove add_media page, add view attachments to challenge page