Deprecated object instanciation

In the memcache engine, at line 199, the memcache object is instanciated in the old php4 way with reference operator & as follow :

$this->memcache = & new Memcache;

This produce a php warning on php 5.2, as a notice I think, which prevent memcache to save the current page into the cache system.
The solution consists in removing the reference operator, since in php5, the new operator already return a reference. I will soon provide a patch modifying the deprecated instruction the following way :

$this->memcache = new Memcache;