User models and test

Signed-off-by: oscarsan <oscarsanhueza@gmail.com>
Adding PAssword to User Model

Signed-off-by: oscarsan <oscarsanhueza@gmail.com>
fix problem with the home page

Signed-off-by: oscarsan <oscarsanhueza@gmail.com>
Adds secure password and rspec test

Signed-off-by: oscarsan <oscarsanhueza@gmail.com>