No version of eventlet that I'm aware of hasany sort of support for
eventlet.wsgi.WRITE_TIMEOUT; I don't know why we've been setting that.
On the other hand, the socket_timeout argument for eventlet.wsgi.Server
has been supported for a while -- since 0.14 in 2013.
Drive-by: Fix up handling of sub-second client_timeouts.
Change-Id: I1dca3c3a51a83c9d5212ee5a0ad2ba1343c68cf9
Related-Change: I1d4d028ac5e864084a9b7537b140229cb235c7a3
Related-Change: I433c97df99193ec31c863038b9b6fd20bb3705b8