Description:
------------
When we set a cookie with the function setcookie() and when the cookie name have spaces " " or points ".", these characters are replaced by underscures '_'.
I think that can be fix by urlencodind points (%2E) and spaces (%20).

Reproduce code:
---------------
<?php
setcookie('cookie_name.with spaces', 'value', time()+10000);
?>
<pre><?php print_r($_COOKIE); ?></pre>
<a href='#'>Reload</a>


Expected result:
----------------
===========
First time:
===========
Array
(
)

Reload
============
Second time:
============
Array
(
    [cookie_name.with spaces] => value
)

Reload

Actual result:
--------------
===========
First time:
===========
Array
(
)

Reload
============
Second time:
============
Array
(
    [cookie_name_with_spaces] => value
)

Reload