all: rename spanner.django to django_spanner

Fixes #325

Author: odeke-em

packages/django-google-spanner/README.md

@@ -29,7 +29,7 @@ and particularly the `DATABASES` section to point to an EXISTING database, of th
 ```python
 DATABASES = {
     'default': {
-        'ENGINE': 'spanner.django',
+        'ENGINE': 'django_spanner',
         'PROJECT': '<project_id>',
         'INSTANCE': '<instance_id>',
         'NAME': '<database_name>',
@@ -48,7 +48,7 @@ For example:
 ```python
 DATABASES = {
     'default': {
-        'ENGINE': 'spanner.django',
+        'ENGINE': 'django_spanner',
         'PROJECT': 'appdev-soda-spanner-staging', # Or the GCP project-id
         'INSTANCE': 'django-dev1', # Or the Cloud Spanner instance
         'DATABASE': 'db1', # Or the Cloud Spanner database to use
@@ -87,7 +87,7 @@ Lack of VARIANCE, STDDEV database functions|Cloud Spanned doesn't yet implement
 ## How it works
 
 ### Overall design
-![](./assets/spanner-django.png)
+![](./assets/overview.png)
 
 ### Internals
-![](./assets/spanner-django-internals.png)
+![](./assets/internals.png)

…nner/assets/spanner-django-internals.png …ango-google-spanner/assets/internals.pngpackages/django-google-spanner/assets/spanner-django-internals.png renamed to packages/django-google-spanner/assets/internals.png packages/django-google-spanner/assets/spanner-django-internals.png renamed to packages/django-google-spanner/assets/internals.png

@@ -101,7 +101,7 @@ def get_connection_params(self):
             'project': self.settings_dict['PROJECT'],
             'instance': self.settings_dict['INSTANCE'],
             'database': self.settings_dict['NAME'],
-            'user_agent': 'spanner-django/0.0.1',
+            'user_agent': 'django_spanner/0.0.1',
             **self.settings_dict['OPTIONS'],
         }
 

…google-spanner/assets/spanner-django.png …jango-google-spanner/assets/overview.pngpackages/django-google-spanner/assets/spanner-django.png renamed to packages/django-google-spanner/assets/overview.png packages/django-google-spanner/assets/spanner-django.png renamed to packages/django-google-spanner/assets/overview.png

@@ -28,7 +28,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         'fixtures_regress.tests.TestFixtures.test_loaddata_raises_error_when_fixture_has_invalid_foreign_key',
         # No Django transaction management in Spanner.
         'basic.tests.SelectOnSaveTests.test_select_on_save_lying_update',
-        # spanner.django monkey patches AutoField to have a default value.
+        # django_spanner monkey patches AutoField to have a default value.
         'basic.tests.ModelTest.test_hash',
         'm2m_through_regress.tests.ToFieldThroughTests.test_m2m_relations_unusable_on_null_pk_obj',
         'many_to_many.tests.ManyToManyTests.test_add',
@@ -234,7 +234,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         # Obscure error with auth_tests:
         # https://github.com/orijtech/spanner-orm/issues/271
         'auth_tests.test_admin_multidb.MultiDatabaseTests.test_add_view',
-        # Tests that by-pass using spanner.django and generate
+        # Tests that by-pass using django_spanner and generate
         # invalid DDL: https://github.com/orijtech/django-spanner/issues/298
         'cache.tests.CreateCacheTableForDBCacheTests',
         'cache.tests.DBCacheTests',