Add devise, create user model and add name to the user migration
Simplify testing with shorter passwords
User spec now can be created
User authentication, sign in and out
Generated devise views and converted them to haml view script from https://github.com/plataformatec/devise/wiki/How-To%3a-Create-Haml-and-Slim-Views
Style up the sign in page
Merge branch 'feature/create-devise-user' into develop