JS: Added ripple.config.load convenience function.

src/js/config.js

@@ -1,3 +1,10 @@
 // This object serves as a singleton to store config options
 
-module.exports = {};
+var extend = require("extend");
+
+var config = module.exports = {
+  load: function (newOpts) {
+    extend(config, newOpts);
+    return config;
+  }
+};

src/js/index.js

@@ -11,3 +11,5 @@ exports.Seed = require('./amount').Seed;
 // the official client, it makes sense to expose the SJCL instance so we don't
 // have to include it twice.
 exports.sjcl = require('../../build/sjcl');
+
+exports.config = require('./config');