Creates bar model, controller, and views (new, create, show, index)

* Can create and show a bar
* Adds validations for bar model fields
* Creates index, new, show views and bar partial
* Creates error messages partial
![confused](https://cloud.githubusercontent.com/assets/755201/5270444/4b407c90-7a39-11e4-8d6f-66c0dbcf1410.gif)