fix path.join error on node 0.10 when using noDisk option
fix noDisk option with binary uploads
upgrade knox dev dependency
provide status code when upload fails--helpful for debugging
ability to optionally keep parts in-memory instead of writing to temp files. Useful for PaaS offerings that don't let you write much (or anything) to disk
use different batching module that allows concurrent uploading as data is coming in
delete part data once uploaded to be sure its out of memory