Pipeline - REST - initial additions of multi-part upload - AGJS-16
Pipeline - REST - use FormData if available
Pipeline REST - also test for Blob
Pipeline - REST - add unit tests for multipart upload
Pipeline - REST - expose upload progress if available
Pipeline - REST - update docs ofr multipart
Pipeline -REST - Add a note about IE support for file uploads
add progress callback to core docs
Pipeline - REST - no need for cache options on save