Added support for disabling migrations when testing

Migrations require up to two minutes to run. This drastically slows down development. The option to disable migrations when testing has been restored.

docs/testing.rst

@@ -7,6 +7,13 @@ To run the unit test suite followed by quality checks, run:
 
     $ make validate
 
+The unit tests run database migrations by default. These migrations can take up to two minutes to run. Most local development
+won't require migrations. You can save time by disabling migrations when running tests locally with the command below:
+
+.. code-block:: bash
+
+    $ DISABLE_MIGRATIONS=1 make validate
+
 Code quality validation can be performed independently with:
 
 .. code-block:: bash

ecommerce/settings/test.py

@@ -13,6 +13,19 @@ INSTALLED_APPS += (
 TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'
 
 LOGGING = get_logger_config(debug=DEBUG, dev_env=True, local_loglevel='DEBUG')
+
+if os.getenv('DISABLE_MIGRATIONS'):
+
+    class DisableMigrations(object):
+
+        def __contains__(self, item):
+            return True
+
+        def __getitem__(self, item):
+            return "notmigrations"
+
+
+    MIGRATION_MODULES = DisableMigrations()
 # END TEST SETTINGS
 
 
@@ -53,6 +66,10 @@ JWT_AUTH.update({
     'JWT_SECRET_KEY': 'insecure-secret-key',
     'JWT_ISSUERS': ('test-issuer',),
 })
+
+PASSWORD_HASHERS = (
+    'django.contrib.auth.hashers.MD5PasswordHasher',
+)
 # END AUTHENTICATION