## Patch update v0.01 - Email validator.
## Updated & Patched by: Frederik
# E-Mail
	public static function checkMail($input){
		if(empty($input) || !filter_var($input, FILTER_VALIDATE_EMAIL)){
				self::$errors['Mail'] = 'Det skal være en Mail-addresse!';
				return false;
		}
		self::cleanString($input);
		return true;
	}