s3 transporter auto-deleting

[ns3777k]

Hey! First off thank you for sharing transit :-)

As I can see, in Transit/Transporter/Aws/S3Transporter.php:166, file is always being deleted after successful upload to s3.
Maybe it'd be better to have this behavior as an option?

For example, I wanna upload the same file to s3 and rackspace (redundancy in case s3 is unavailable).
But I don't like the idea to extend this class over a simple option.

What do you think?

[milesj]

I don't have anything against it, just that Transit would have to be rewritten to support multiple transporters, as it currently only supports 1 at a time.

[ns3777k]

been a long time. totally forgot to send a PR :-)
#18

[milesj]

Totally forgot about this as well, hah.