Users

What I have done:

1. Added a simple user model ala devise gem
2. Added name to user model
3. Added simple layout
4. Added simple navigation
5. Added devise views
6. Added user sign up

To undersand the power of devise, please read the gem documentation.

https://github.com/plataformatec/devise


![secure_pwd](https://cloud.githubusercontent.com/assets/411484/4381560/0aa59686-4378-11e4-8fbb-eb346770aeee.jpg)