Add rethinkdb.

lib/util/rutil.js

@@ -0,0 +1,17 @@
+var r = require('rethinkdb')
+var re = require('rethinkdb/errors')
+var Promise = require('bluebird')
+
+module.exports.errors = re
+
+module.exports.connect = function(options) {
+  var resolver = Promise.defer()
+  r.connect(options, resolver.callback)
+  return resolver.promise
+}
+
+module.exports.run = function(conn, q) {
+  var resolver = Promise.defer()
+  q.run(conn, resolver.callback)
+  return resolver.promise
+}