support `-T` option

[joelclermont]

From the Transitor API docs:

curl -v -X PUT \
  -H "Content-Type: audio/mpeg" \
  -T /path/to/your/audio/Episode1.mp3 \
  "upload_url_from_authorize_upload"

The Content-Type header and -T option can be replaced with withBody($contents, 'audio/mpeg') where $contents is the complete file contents. (Like via file_get_contents)

[jasonmccreary]

Good one. I'll tag it.