Merge pull request #495 from juliaelman/homepageredux

[Bug 867416] Small changes to design + structure of homepage.
[bug 864970] Activate Fun Facts on homepage.
Celery beat scheduler.
Merge pull request #498 from glogiotatidis/celerybeat

Celery beat scheduler.
Merge pull request #497 from glogiotatidis/actiavatefunfacts

[bug 864970] Activate Fun Facts on homepage.