fix URL for active users
Exclude Active Languages=None
Add Heroku specific env BUILDPACK_URL
Remove test code
Add logic to format numbers and handle language=None
Use Jinja templating language to format numbers and add code for testing
Merge branch 'master' into dev
Add logic to delete older entries
d3 bubbles
add text
process values for drawing d3 bubbles
add ActiveLanguagesBubble - logic to generated data for d3 bubbles