Add sql alchemy engine options to common configurations.

config.py

@@ -15,6 +15,7 @@ class Config:
     MAIL_DEFAULT_SENDER = os.environ.get('MAIL_DEFAULT_SENDER')
 
     ''' ### Flask-SQLAlchemy ### '''
+    SQLALCHEMY_ENGINE_OPTIONS = {'pool_size': 30, 'pool_timeout': 30}
     SQLALCHEMY_TRACK_MODIFICATIONS = False
 
     ''' ### Opaque ### '''
@@ -31,8 +32,6 @@ class DevelopmentConfig(Config):
     DEBUG = True
 
     ''' ### Flask-SQLAlchemy ### '''
-    SQLALCHEMY_ENGINE_OPTIONS = {'pool_size': 30,
-                                 'pool_timeout': 30}
     SQLALCHEMY_DATABASE_URI = 'postgresql://{}:{}@db/{}'.format(
         os.environ.get('POSTGRES_USER'),
         os.environ.get('POSTGRES_PASSWORD'),