verify_owner now redirects to root_path :pensive:
Deletion checked through the list of questions

instead of 404 error
Unnecessary tests removed
Add User to Answer
Feature 'Answer the question'
Feature 'Edit answer'
Feature 'Delete answer'
Feature specs refactoring

- Detect forms by id
- Notices and alerts added to devise-related specs
- Slightly better sign_in macro
- Some clean up
Ensure that objects of deleted users are marked
Clean up 'create'-features
Fix typo