twitter/twemproxy — pull request #116 by ypocat (2013-06-02 17:10:33+00:00)
Title: support for set ex/px/nx/xx for redis 2.6.12 and up

This is to support the extended SET introduced in 2.16.12:

`SET key value [EX seconds] [PX milliseconds] [NX|XX]`

more info at: http://redis.io/commands/set

Thanks.