Fix npm warning about repositories

[sideshowcoder]

repositories is not (no longer) valid package.json syntax it should be repository, since the array only contains one element anyway it can just be removed I would say. This stops npm from complaining about it.

[Neamar]

Thank you, this has been bothering me for quite some time too (i'm new on the repo, and this is one of the first thing i would have done ;))

[sideshowcoder]

Awesome! Thanks for the merge. Are you officially working on rial-js now?

[Neamar]

I've been added to the repo, but I think @Quentin01 will be the one doing the most work here :)

We've been using riak-js for a few months now, and wish to add / fix some features on this nice lib

[eveiga]

Yeah!!