Allow the user to delete their own account

config/locales/en.yml

@@ -821,11 +821,13 @@ en:
     authentication_header: Your authentication
     current_authentication_type: Your authentication type is %{auth_type}
     change_authentication_type: Change your authentication type
+    remove_introduction: You can remove your user account here. Note that this is irreversible and will remove all your data! After removal you will be logged out.
     tabs:
       authentication: Authentication
       tracks_behavior: Tracks behavior
       profile: Profile
       date_and_time: Date and time
+      remove_account: Remove account
     generate_new_token_confirm: Are you sure? Generating a new token will replace the existing one and break any external usages of this token.
   data:
     import_successful: Import was successful.

config/routes.rb

@@ -106,7 +106,7 @@ Rails.application.routes.draw do
   # This means the controller action needs to parse the extension and set format/content type
   # Needed for /todos/tag/first.last.m to work
   get 'todos/tag/:name' => 'todos#tag', :as => :tag, :format => false, :name => /.*/
-  
+
   get 'attachments/:id/:filename' => "todos#attachment"
   get 'tags.autocomplete' => "todos#tags", :format => 'autocomplete'
   get 'todos/done/tag/:name' => "todos#done_tag", :as => :done_tag