Technical Writing and Research on Heroku Procfiles

CONTEXT
Heroku (the webhosting platform) - https://herokuc.com - uses the concept of Procfile's to describe how applications should be launched and configured on their service.

Their official documentation is here: https://devcenter.heroku.com/articles/procfile

PROJECT
This project is to gather and organize as many different examples of Procfiles as possible and write up a small description of each as well as providing links to more information.

List of frameworks/apps needing researched, each would need 25 - 50 words describing the framework and a link to where to learn more as well as the example Procfile.

RUBY
- Rails
- Puma
- Sinatra
- Hanami
- Padrino
- Grape

PYTHON
- Django
- TurboGears
- web2py
- pylons

JAVA
- Blade
- Dropwizard
- Grails
- Spring
- Struts
- Tapestry

JAVASCRIPT
- Express
- Socket.io
- Koa
- Sails
- MEAN
- LoopBack
- Keystone
- Feathers

PHP
- Laravel
- CodeIgniter
- Symfony
- Cake PHP
- Yii
- Zend

Thanks! Let me know if there are any questions.