Fix goroutine leak associated with http client
Fix goroutine leak associated with http client

Reuse http client in uploader to avoid leaking connections and
associated goroutines.

[#76328832]

Signed-off-by: Matthew Sykes <fb2dd171fe47bac8d5b55d1d785c243b0892e206@gmail.com>

cloudfoundry-incubator/executor