Use uuid module instead of node-uuid

[vieiralucas]

node-uuid is deprecated
npm WARN deprecated node-uuid@1.4.7: use uuid module instead

You can read more about it over uuidjs/uuid#142 and uuidjs/uuid#155

Thanks

[coveralls]

Coverage remained the same at 84.388% when pulling fc3af75 on vieiralucas:use-uuid into fbf5813 on restify:master.

[DonutEspresso]

Thanks for the PR! It looks like your branch might be outdated - do you mind rebasing against master?

[vieiralucas]

Done!

[coveralls]

Coverage remained the same at 84.388% when pulling 26f4f1b on vieiralucas:use-uuid into d415994 on restify:master.

[coveralls]

Coverage remained the same at 84.388% when pulling 26f4f1b on vieiralucas:use-uuid into d415994 on restify:master.

[DonutEspresso]

Thank you!