add expiration and expireat to Value, List and Set.
fix README
fix README
fix README
add expiration and expireat to Redis::HashKey
update README
add model test
Have 32 DBs in redis DB
Allow customizing redis handle, don't barf if a key is specified and object has no ID method.
Add variadic zadd
Rename add_all to merge, add tests
add set command: srandmember support
fix bug that cannot update expiration when unshift to lists
add expiration option to Redis::Counter
remove Gemfile.lock
add expiration and expireat to Value, List and Set.
fix README
fix README
add expiration and expireat to Redis::HashKey
update README