Fix API errors, add slight simplifications

lib/api.js

@@ -14,16 +14,17 @@ var fs = require("fs"),
 var express = require("express"),
     bodyParser = require("body-parser");
 
-var Logger = require("./logger");
+var Logger = require("./logger"),
+    _ = require("./lodash");
 
 var API = module.exports = function API(opts) {
   if (opts == null) {
     opts = {};
   }
 
-  for (var d in this.defaults) {
-    this[d] = opts.hasOwnProperty(d) ? opts[d] : this.defaults[d];
-  }
+  _.forEach(this.defaults, function(def, name) {
+    this[name] = _.has(opts, name) ? opts[name] : def;
+  }, this);
 
   this.createServer();
 
@@ -46,12 +47,7 @@ var API = module.exports = function API(opts) {
 
   // extracts command params from request
   this.express.use(function(req, res, next) {
-    req.commandParams = [];
-
-    for (var p in req.body) {
-      req.commandParams.push(req.body[p]);
-    }
-
+    req.commandParams = _.values(req.body);
     return next();
   });
 
@@ -59,8 +55,9 @@ var API = module.exports = function API(opts) {
   this.express.use("/api", require("./api/routes"));
 
   // error handling
-  this.express.use(function(err, req, res) {
+  this.express.use(function(err, req, res, next) {
     res.status(500).json({ error: err.message || "An error occured."});
+    next();
   });
 };