* the great unfuckening of user and displayName
* `login` is purely used as login with AUTH_MODE_SELF
* `email` may now also be used to log in (if the system knows it)
* `username` is purely used for display around the site, and lookups from web context
* both must exist because of external logins
a) that may be not unique
b) you may not want to share with the rest of the world
* todo: implement rename ( because of b) )
* fixed misc issues Intellisense was nice enough to highlight.
* mostly deprecated usage of uninitialized parameters
* class GenericPage still needs a long, hard look and a refactor
* access class property in screenshot/comment-admin by function. Aowow is compatible with PHP 5.5 again
* changed line-endings across the board from \r\n to \n
