Pull request/00a62fb4

Hiredis.jl is a Redis client for Julia that uses the hiredis C library. I saw that there is an existing Redis client, but I needed something more fully featured, with pipelining implemented, quickly for a current project, and have used hiredis before in production. I think I read somewhere that pure Julia libraries are preferred. This may be a viable alternative until such time as the other library is fleshed out. I will look to lend support if required and as time permits. I'm new to Julia, and have more of a background in Java and R, than C. I welcome any feedback to improve the code and follow a more idiomatic style.

Best regards, Mark