added the foreman processes for redis and the workers

Pretty sure I got this working. There is a small detail that I can't figure out -- when the jobs are queued, a queue is created called "poll" but we specify that the queue is called "poll_queue". The jobs still run fine.

To run the jobs, do the following:

1. Start the rails server
2. Run "foreman start"

In production, Heroku will make use of the Procfile that foreman uses locally to run all of the commands that we have in there.