Heroku Integration: fix system errors thrown during startup time at Heroku env.
Heroku Integration: fix system errors thrown during startup time at Heroku env.

Avoid error like one bellow:

    ...
    File "/app/.heroku/python/lib/python2.7/site-packages/whitenoise/django.py", line 12, in <module>
       "'DJANGO_SETTINGS_MODULE' environment variable must be set "

fcv/simple-web-scraper,fcv/simple-web-scraper