Generate user model
Add validations for User model
Add migration with the username of the user
Ignore db/schema.rb
Add status image to readme
Merge branch 'master' into feature/users
Merge branch 'master' into feature/users
Merge pull request #4 from piradoiv/feature/readme

Add status image to readme
Modify travils configuration file
Fix database issue on travis
Merge pull request #6 from piradoiv/feature/users

Prepare user model, validations, etc
Merge branch 'master' into feature/theme