Add support for PSETEX. [DATAREDIS-271]

[spring-projects-issues]

Christoph Strobl opened DATAREDIS-271 and commented

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Reference URL: http://redis.io/commands/psetex

Issue Links:

• DATAREDIS-194 Add Redis 2.6 pSetEx command
  ("duplicates")

Referenced from: pull request #46

[spring-projects-issues]

Thomas Darimont commented

Merged into master