Fix BLPOP and BRPOP arguments construction error
Add support for boolean reply type
Merge pull request #5 from syhpoon/master

Fix BLPOP and BRPOP arguments constructing
Merge branches 'master', 'master', 'master', 'master' and 'master' of github.com:gosexy/redis
Fixing HDEL, see #8.
Forgot to allocate space for the missing argument. Duh. #9.
Allowing nil to be a valid response type. See #12.