Lots of small improvements
* Indented code to make it more beautiful
* Added newlines to make code more beautiful
* Force users to always be in "Everybody" group
  * Make it a magical group
  * Special handling for a group with name "Everybody" added
    * Does not give option to check or un-check membership
    * Membership automatically added
* Users are automatically logged in after they register
* Users are not given an error message when they cancel editing their account