1.2.1b

• Added option 'Cache engine' to choose between files/Memcached/APC/etc.
• Memcached added to supported engines.
• APC added to supported engines.
• Added CDN sync tool (via FTP).
• Added warning about huge resources consumption.
• Improved data:URI behavior.
• Improved server side caching.
• Improved support for Windows Server / IIS.
• Improved files' merging.
• Added native support for Magento.
• Added Urdu localization.
• Minor fixes.