Merge branch 'postgres-mixins-env-vars' into 'develop'

# VERSION 0.1.19

    - Fix bugs in postgres mixin introduced by 0.1.18

# VERSION 0.1.18

    - Updated environment varables to coalesce from `DATABASE_*` to `PG_*`

    """

    DEFAULT_DB = ce('DATABASE_DB_PG', ce('DATABASE_DB', ce('PG_DATABASE', 'postgres')))

    DEFAULT_USER = ce('DATABASE_USER_PG', ce('DATABASE_USER', ce('PG_USER', 'postgres')))

    cme('DATABASE_USER_PG', 'postgres',

                       'DATABASE_USER', 'postgres')

    DEFAULT_PW = cme('DATABASE_PW_PG', 'postgres',

                     'DATABASE_PW', 'postgres')

    DEFAULT_HOST = cme('DATABASE_HOST_PG', "localhost",

                       'DATABASE_HOST', "localhost")

    DEFAULT_PORT = int(cme('DATABASE_PORT_PG', 5432,

                           'DATABASE_PORT', 5432))

    DEFAULT_TIMEOUT = ce('DATABASE_TIMEOUT', 60)

    DEFAULT_SCHEMA = cme('DATABASE_SCHEMA_PG', 'public',

                         'DATABASE_SCHEMA', 'public')

    DEFAULT_ENGINE = cme('DATABASE_ENGINE_PG', 'postgresql',

                         'DATABASE_ENGINE', 'postgresql')

    DEFAULT_PW = ce('DATABASE_PW_PG',ce('DATABASE_PW',ce('PG_PASSWORD','postgres')))

    DEFAULT_HOST = ce('DATABASE_HOST_PG',ce('DATABASE_HOST', ce('PG_HOST','localhost')))

    DEFAULT_PORT = int(ce('DATABASE_PORT_PG',ce('DATABASE_PORT',ce('PG_PORT',5432))))

    DEFAULT_TIMEOUT = ce('DATABASE_TIMEOUT', ce('PG_TIMEOUT', 60))

    DEFAULT_SCHEMA = ce('DATABASE_SCHEMA_PG',ce('DATABASE_SCHEMA',ce('PG_SCHEMA','public')))

    DEFAULT_ENGINE = ce('DATABASE_ENGINE_PG',ce('DATABASE_ENGINE','postgresql'))

    DEFAULT_SEARCH_PATH = ce('DATABASE_SEARCH_PATH', 'public')

    # define a URI string if URI is perferred to connect

#!/usr/bin/env bash

# -*- coding: utf-8 -*-

# eval $(cat db_env) ./test-db-conn 

PG_DATABASE=postgres

PG_HOST=postgres

PG_PORT=5432

PG_USER=postgres

PG_PASSWORD=postgres

MAX_RETRIES=60

while :; do