* Adds guard clauses and better error messages to UsersController #confirm_destroy
* Adds tests around guard clauses in UsersController #confirm_destroy
* Adds a custom error for invalid tokens in UsersController#confirm_destroy
* Refactor user_destroy_token.rb initialize method to be more succinct
* Removes unnecessary code from user_self_destroy_spec.rb and fixes failing InvalidToken spec
* Reworks code in #confirm_destroy to be consistent with other #destroy methods
* Adjust token mismatch test to use mismatched tokens
* Refactors #confirm_destroy and adds a before_action to Users::Controller
- Reworks the logic within #confirm_destroy and removes excess code
- Adds set_or_sign_in_user before_action for #confirm_destroy
- Removes custom InvalidToken error message
* Cleans up spec and adds an additional test around logged out user edge case
* Fixes failing tests due to changes in #confirm_delete flow
* Adjusts test logic in user_self_destroy_spec.rb
* Refactors code by removing custom before_action and rewriting conditionals
* Ask user to add email when deleting [WIP]
* Ask to provide an email before requesting account deletion
* Additional checks to make sure that user won't be deleted w/o an email
* Revert changes on confirm destroy view
* Action to request account deletion by email
* Confirmation page for user destroy
* Remove some of the old destroy user code
* System tests for user destroy
* Moved user destroy tokens to redis
* Change tests according to the new user destroy token storage (in redis)
* Added info about the link to user delete confirmation email
* Remove blank like from schema.rb
* Delete user destroy token on user delete
* Update confirm user destroy js
