Some small improvements to the bridge js and more validation tests + …

…fixes.

index.js

@@ -25,12 +25,12 @@ var couchdb_objects = require("couchdb-objects");
 var nodify = require("promise-nodify");
 
 function addOldDoc(db, id, args) {
- return db.get(id).then(function (err) {
- args.push(null);
- return args;
- }, function (doc) {
+ return db.get(id).then(function (doc) {
  args.push(doc);
  return args;
+ }, function (err) {
+ args.push(null);
+ return args;
  });
 }
 
@@ -135,7 +135,7 @@ function parseValidationFunctions(resp) {
 }
 
 function processArgs(db, callback, options) {
- if (!callback) {
+ if (typeof options === "function") {
  callback = options;
  options = {};
  }