Merge pull request #29 from bbss/master

Added support for Hash commands
Merge pull request #30 from bbss/master

ZSet commands added
Merge pull request #32 from bbss/master

Added sort, and updated version number
Merge pull request #34 from bbss/master

added expire and expireat command
Merge pull request #35 from bbss/master

made receiver errors a bit more informative
Removing unnecessary dependency on 'connected' future in rawSend()

Having this check seems to cause a hang when either a password or a db is passed in to the connection string.
Merge pull request #36 from brentalanmiller/hang_fix

Fixes hang when a password or a db is used in the connection string
Merge branch 'master' of https://github.com/dartist/redis_client
added set/getbit, randomkey, setrange, rename, renamenx, added tests for auth and changing database