Implement model and controller tests
Add cosmetic modifications to bookmarks table
Improve url validation
Reverse bookmark order
Fix open-uri redirection bug
Implement dislaying error messages
Implement dislaying error messages
First header version
First header version
Implement user model
Implement user model
Finish first version of user model
Merge branch 'feature/users' into develop
Add sign in, sign up and sign out functionality, start implementing AJAX bookmarks editing
Finish AJAX editing
Improve tests, improve default bookmark creation
Improve tests, improve default bookmark creation
Add new folder and new bookmark buttons
Create model for folders
Add relationships to models