ispdy: send WINDOW_UPDATE earlier
ispdy: add DATA logging
ispdy: fix crash when `details` is `nil`
ispdy: manual CFStream bridging
Added opaque_id property to ISPDY.

Users of ISPDY can use this property to distinguish connections and
choose to ignore connection errors on an old connection if a new
connection has already been established.
Revert "ispdy: send WINDOW_UPDATE earlier"

This reverts commit f37541d898bf8b4683e8bfcccdbf77d40538ea2d.
Revert "ispdy: add DATA logging"

This reverts commit 31b9e5d17a73ef53dda5d6d750808287dd5f4ae8.