CLOSED - task 133: Infographic type page to show all activity/users etc 
https://github.com/DigitalCampus/django-oppia/issues/issue/133
OPEN - task 129: Add visualisation to display map from cartodb 
https://github.com/DigitalCampus/django-oppia/issues/issue/129
OPEN - task 136: Add hits by popular languages 
https://github.com/DigitalCampus/django-oppia/issues/issue/136
CLOSED - task 137: Store lang as separate field in tracker 
https://github.com/DigitalCampus/django-oppia/issues/issue/137
CLOSED - task 136: Add hits by popular languages 
https://github.com/DigitalCampus/django-oppia/issues/issue/136