Merge branch 'master' into 0.8M

Conflicts:
	AUTHORS
	docs/django.rst
	mongoengine/base.py
	mongoengine/queryset.py
	tests/fields/fields.py
	tests/queryset/queryset.py
	tests/test_dereference.py
	tests/test_document.py

docs/changelog.rst

@@ -51,6 +51,19 @@ Changes in 0.8.X
 
 Changes in 0.7.10
 =================
+- Allow construction using positional parameters (#268)
+- Updated EmailField length to support long domains (#243)
+- Added 64-bit integer support (#251)
+- Added Django sessions TTL support (#224)
+- Fixed issue with numerical keys in MapField(EmbeddedDocumentField()) (#240)
+- Fixed clearing _changed_fields for complex nested embedded documents (#237, #239, #242)
+- Added "_id" to _data dictionary (#255)
+- Only mark a field as changed if the value has changed (#258)
+- Explicitly check for Document instances when dereferencing (#261)
+- Fixed order_by chaining issue (#265)
+- Added dereference support for tuples (#250)
+- Resolve field name to db field name when using distinct(#260, #264, #269)
+- Added kwargs to doc.save to help interop with django (#223, #270)
 - Fixed cloning querysets in PY3
 - Int fields no longer unset in save when changed to 0 (#272)
 - Fixed ReferenceField query chaining bug fixed (#254)

docs/django.rst

@@ -10,9 +10,15 @@ In your **settings.py** file, ignore the standard database settings (unless you
 also plan to use the ORM in your project), and instead call
 :func:`~mongoengine.connect` somewhere in the settings module.
 
-.. note:: If getting an ``ImproperlyConfigured: settings.DATABASES is
-    improperly configured`` error you may need to remove
-    ``django.contrib.sites`` from ``INSTALLED_APPS`` in settings.py.
+.. note ::
+   If you are not using another Database backend you may need to add a dummy
+   database backend to ``settings.py`` eg::
+
+        DATABASES = {
+            'default': {
+                'ENGINE': 'django.db.backends.dummy'
+            }
+        }
 
 Authentication
 ==============
@@ -49,6 +55,9 @@ into you settings module::
 
     SESSION_ENGINE = 'mongoengine.django.sessions'
 
+Django provides session cookie, which expires after ```SESSION_COOKIE_AGE``` seconds, but doesnt delete cookie at sessions backend, so ``'mongoengine.django.sessions'`` supports  `mongodb TTL
+<http://docs.mongodb.org/manual/tutorial/expire-data/>`_.
+
 .. versionadded:: 0.2.1
 
 Storage