Subdocs & script templates. Migrate the API from User.tasks =>

User.habits/dailys/todos/rewards. Move /#/tasks & /#/options page
loading from server-sent html to everything loaded in the page as script
templates (including necessary fixes for adsense). NOTE: this commit
won't work, it depends a bit on the *next* commit with Challenges
functionality, but I wanted to separate it out a bit for clarity

src/models/task.js

@@ -0,0 +1,41 @@
+// User.js
+// =======
+// Defines the user data model (schema) for use via the API.
+
+// Dependencies
+// ------------
+var mongoose = require("mongoose");
+var Schema = mongoose.Schema;
+var helpers = require('habitrpg-shared/script/helpers');
+var _ = require('lodash');
+
+// Task Schema
+// -----------
+
+var TaskSchema = new Schema({
+  history: [{date:Date, value:Number}],
+  _id:{type: String,'default': helpers.uuid},
+  text: String,
+  notes: {type: String, 'default': ''},
+  tags: Schema.Types.Mixed, //{ "4ddf03d9-54bd-41a3-b011-ca1f1d2e9371" : true },
+  type: {type:String, 'default': 'habit'}, // habit, daily
+  up: {type: Boolean, 'default': true},
+  down: {type: Boolean, 'default': true},
+  value: {type: Number, 'default': 0},
+  completed: {type: Boolean, 'default': false},
+  priority: {type: String, 'default': '!'}, //'!!' // FIXME this should be a number or something
+  repeat: {type: Schema.Types.Mixed, 'default': {m:1, t:1, w:1, th:1, f:1, s:1, su:1} },
+  streak: {type: Number, 'default': 0}
+});
+
+TaskSchema.methods.toJSON = function() {
+  var doc = this.toObject();
+  doc.id = doc._id;
+  return doc;
+}
+TaskSchema.virtual('id').get(function(){
+  return this._id;
+})
+
+module.exports.schema = TaskSchema;
+module.exports.model = mongoose.model("Task", TaskSchema);