- The goal here is to prevent the losing of the choices by having a bad name.
	- This is a POC, there is probably some cleaning before merge

First: Block the poll (no more modification)
Second: Delete the poll 60 days after the expiration date (configurable)

* Use Smarty to split View and Controller on studs page (work in progress)
* Add field "active" to Poll
* And some other stuff...

Warning: max(): Array must contain at least one element in "studs.php" on line 615

remove all displayed warning by splitting day and hour in $current variable

bug correction on email notification (using '$dsondage->titre' in adminstuds.php)