Rails 4.1 Upgrade

As an exercise I updated this to rails 4-1.  Due to updates in the latest devise gem, I had to modify some existing migrations so that they wouldn't break.  Since this is a bootstrapping app I figured this would not be an issue as users shouldn't be merging in changes from here once they've started their project.

I've completed the following:

- [x] Upgrade rails gem to 4.1, and use the latest ruby 2.1.2
- [x] Upgrade devise gem to the latest version, and update associated views and locales
- [x] Upgrade omniauth gem to latest version
- [x] Add a setup script to perform essential bootstrapping, and added foreman for easy running of the local server
- [x] Use jquery instead of Prototype
- [x] Use unicorn server by default
- [x] Remove rails plugins
- [x] Move to asset pipeline

I also established some use default configuration settings.  If there's anything you don't want, let's start a discussion.