Config through env vars, heroku deployment instructions
Using dotenv to load env config
Debugging key usage
Delaying job execution to avoid Heroku failures
Support for empty repos
Leaderboard titles and better trent formatting
Support for SINCE config
Support for custom renderer on series graph

Also moved config vars to node rather than container
Better visualisation of issue widget
Better visualisation of leader board, issues and pulls widgets
Avoid division by zero in trend helper
Configurable weighting