[Rails 4] Remove attr_accessible
[Rails 4] Remove attr_accessible

praxik/s3_multipart,praxik/s3_multipart,maxgillett/s3_multipart,michaelkeenan/s3_multipart,mihserf/s3_multipart,mihserf/s3_multipart,michaelkeenan/s3_multipart,praxik/s3_multipart,maxgillett/s3_multipart,michaelkeenan/s3_multipart,mihserf/s3_multipart,maxgillett/s3_multipart