Updated link

As the [hiredis README](https://github.com/antirez/hiredis/blob/master/README.md) shows, the project has moved to https://github.com/redis/hiredis.
Merge pull request #41 from randomfactor/master

Fix for use on Nodejitsu
Merge pull request #35 from mcandre/master

Updated hiredis link in README
[feature] - repo and url is showed in packaje.json
Merge pull request #43 from vodolaz095/master

[feature] - repo and url is showed in packaje.json
Added license type and reference to LICENSE file to the package.json
Merge pull request #44 from zubairov/patch-1

Added license type and reference to LICENSE file to the package.json
Merge branch 'master' of https://github.com/pietern/hiredis-node