add Profile model

js/models/Profile.js

@@ -0,0 +1,38 @@
+'use strict';
+var preconditions = require('preconditions').singleton();
+var _ = require('underscore');
+var log = require('../log');
+var bitcore = require('bitcore');
+
+function Profile(opts, storage) {
+  preconditions.checkArgument(opts.email);
+  preconditions.checkArgument(opts.password);
+  preconditions.checkArgument(storage);
+  preconditions.checkArgument(storage.getItem);
+
+  this.email  = opts.email;
+  this.password = opts.password;
+  this.hash = bitcore.util.sha256ripe160(this.email + this.password);
+
+  this.extra = opts.extra;
+};
+
+Profile.fromObj = function(obj, storage) {
+  return new Profile(obj, storage);
+};
+
+Profile.prototype.toObj = function() {
+  return JSON.parse(JSON.stringify(this));
+};
+
+
+Profile.prototype.store = function(cb) {
+// TODO
+  return cb();
+//  this.storage.setItem(this.hash, this.toObj());
+};
+
+
+
+module.exports = Profile;
+