Diffengine for Heroku

This is a fork from DocNow/diffengine and it focused in making this engine to work under Heroku.

Contributions made

• Environment vars in config.yaml file #67
• Black formatter integration #68
• CLI command for generating tokens for extra twitter accounts #69
• Configurable webdriver (gecko by default but now chrome can be chosen) #70
• Twitter integration #71
• Configurable loggers (file and console) #72
• Configurable tweet text #74
• Configurable database #83
• Encoding autodetection #88
• Ability to skip "subscribe now" kind of pages #89

Working example

All of these integration are currently working under this fork and most of them are already integrated in the upstream branch. A working implementation of this particular branch can be seen at the diffbots project.