square/okhttp — pull request #156 by swankjesse (2013-04-29 04:12:15+00:00)
Title: Permit the caller to disable transports.

This is currently an underpowered API; in practice the only thing
you can do is disable spdy/3. In the future we may support more
transports (spdy/4, http/2.0) and I don't want to make that an
API change.