Merge pull request #16 from structtv/structs

use structs instead of records for GenServers
Generate UUID and store jid in Redis.  Fixes #15.
Merge pull request #17 from akira/uuid

Generate UUID and store jid in Redis.  Fixes #15.
Generate UUID and store jid in Redis.  Fixes #15.
Merge pull request #18 from structtv/logger

add support for logger
Merge branch 'master' of https://github.com/akira/exq

* 'master' of https://github.com/akira/exq:
  Generate UUID and store jid in Redis.  Fixes #15.
Manager timeout handling cleanup + RedisQueue array -> tuple

* Use OTP 'timeout' return values instead of explicitly setting timers
* Vary timeout depending on whether jobs were dequeued or not
* Use tuple instead of array on RedisQueue multiple return value
merge fixes
rebase manager timeout