Add Makefile targets to run all or selected tests against a

MySQL or Postgres Docker container.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/settings/testing/docker/db_mysql.py

@@ -0,0 +1,13 @@
+from __future__ import unicode_literals
+
+from .base import *  # NOQA
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.mysql',
+        'NAME': 'mayan',
+        'USER': 'root',
+        'HOST': '127.0.0.1',
+        'PORT': '3306',
+    }
+}