creating redisbackend
minor changes on source data and starting test
change saved structure and add test
change redisbackend and edit test
Updated README.
add 'djthumbs' prefix, define a method to generate source key, remove source checking on add thumbnail
Changed the definition of storage and metadata in conf
change test using get_source_key and get_thumbnail_key
Merge pull request #10 from ui/jr-redis_backend

Redis Backend
Merge pull request #11 from SeiryuZ/change-config

Changed the definition of storage and metadata in conf
init for RedisBackend
Merge pull request #12 from jessicarasidi/master

init for RedisBackend
Merge remote-tracking branch 'origin/master' into processors