[PEPr] Comment on Caching::phpfastcache

hi guys, I'm Khoa.

I agree with Bertrand Massion too, my code need improve design. 

I just created new plan for next version.

I just looked at other classes, and I see I have to learn more from them on
patterns design.

Right now, my code is work good, but it is painful to add a new backend or
modify an existing one.

Thanks for all advises,

I will propose my next version on couple months soon.

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http://pear.php.net/pepr/pepr-proposal-show.php?id=692