refs #93 'add acts_as_paranoid to the user model'
refs #70 'add the model spec about users'
refs #93 'update the records what destroy'
refs #70 'add the controller spec about user login'
refs #70 'add the controller spec about user register'
refs #69 'ignore *.swp files'
refs #70 'internationalization and display the error messages'
refs #70 'add features spec about sign in and sign up'
refs #96 'add function that add, edit and delete some categories'
refs #96 'add routing spec, requests spec and controller spec for the category management'
refs #96 'fix'
refs #96 'add model spec and controller spec about the category management'
refs #96 'limit the maximum characters about the category name'
refs #98 'create migrate file, and rake db:migrate'
refs #98 'create a function that create, update and delete the breakdown'
refs #98 'add controller spec, requests spec, routing spec and model spec about the breakdown management'