Implementeed better error handling. Separate static function for fatal error...

Implementeed better error handling. Separate static function for fatal error in utitilies that present a error the user. This page to the user shows a error text that can be localized to several languages, the error page also shows debug text, and a way to submit errors to the administrators.



git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@232 44740490-163a-0410-bde0-09ae8108e29a