1.3.0

• Deprecated CacheManager::tagResponse in favor of TagHandler::addTags.
• Added configuration for Symfony HttpCache client and HttpCache now loads purge and refresh handlers by default.
• Configured/annotated cache tags on subrequests (in Twig: render(controller())) are no longer ignored. Additionally, it is now possible to add tags from code before the response object has been created, by using the TagHandler, and from Twig with the fos_httpcache_tag function. If you defined custom services for the InvalidateTagCommand, you should now inject the TagHandler instead of the CacheManager.
• Added configuration option for custom proxy client (#208)
• Added support for a simple Etag header in the header configuration (#207)