Cache patches

I have been using the two attached patches to the Cache module for several months in production without any problems. The first one, php-Cache-1.5.1-none-encoding.patch corrects the documentation for the encoding_mode property and adds a 'none' option for situations where base64 encoding is unnecessary. Using none significantly speeds up the cache. The second patch, php-Cache-1.5.1-getexprires.patch, adds an API method to get the expiration date of the cache entry and uses it where appropriate. It is useful when acaching full HTTP content responses as it allows the Expires header to be set accurately. I hope that other people find these useful and they can get merged into CVS. Thanks. Peter

Attachment: [text/x-patch] php-Cache-1.5.1-none-encoding.patch