Add user model docs.

README.md

@@ -759,6 +759,41 @@ Various APIs in Asteroid accept type descriptions (eg. [remote methods](#remote-
  - `Buffer` - a node.js Buffer object
  - [GeoPoint](#geopoint) - an asteroid GeoPoint object. TODO
 
+### User Model
+
+Allow users of your asteroid app to register and authenticate.
+
+    // define a User model
+    var User = asteroid.createModel(
+      'user',
+      {
+        email: 'EmailAddress',
+        password: {
+          type: 'Password',
+          min: 4,
+          max: 26
+        }
+      },
+      {
+        username: 'email',
+        extend: 'User'
+      }
+    );
+    
+    // attach to the memory connector
+    User.attachTo(memory);
+    
+    // create a user
+    User.create({
+      email: 'foo@bar.com',
+      password: '123456'
+    });
+    
+
+### Email Model
+
+Send emails from your asteroid app.
+
 ### REST Router
 
 Expose models over rest using the `asteroid.rest` router.

test/geo-point.test.js

@@ -16,4 +16,41 @@ describe('GeoPoint', function() {
       assert.equal(GeoPoint.distanceBetween(here, there, {type: 'feet'}), 2568169.038886431);
     });
   });
+  
+  describe('GeoPoint()', function(){
+    it('Create from string.', function() {
+      var point = new GeoPoint('1.234,5.678');
+      assert.equal(point.lng, 1.234);
+      assert.equal(point.lat, 5.678);
+      var point2 = new GeoPoint('1.222,         5.333');
+      assert.equal(point2.lng, 1.222);
+      assert.equal(point2.lat, 5.333);
+      var point3 = new GeoPoint('1.333, 5.111');
+      assert.equal(point3.lng, 1.333);
+      assert.equal(point3.lat, 5.111);
+    });
+    it('Serialize as string.', function() {
+      var str = '1.234,5.678';
+      var point = new GeoPoint(str);
+      assert.equal(point.toString(), str);
+    });
+    it('Create from array.', function() {
+      var point = new GeoPoint([5.555, 6.777]);
+      assert.equal(point.lng, 5.555);
+      assert.equal(point.lat, 6.777);
+    });
+    it('Create as Model property', function() {
+      var Model = asteroid.createModel('geo-model', {
+        geo: {type: 'GeoPoint'}
+      });
+      
+      var m = new Model({
+        geo: '1.222,3.444'
+      });
+      
+      assert(m.geo instanceof GeoPoint);
+      assert.equal(m.geo.lng, 1.222);
+      assert.equal(m.geo.lat, 3.444);
+    });
+  });
 });