Symfony 2.7 calls its own deprecated methods, raising warnings that break the build if we treat deprecated as an error
Merge pull request #180 from FriendsOfSymfony/ignore-deprecations

Get rid of build failures with symfony 2.7
Add 'Works with' and 'Preparation' sections

* Add hash response caching and HttpCache (fix #169)
Merge pull request #173 from FriendsOfSymfony/doc-improvements

Add 'Works with' and 'Preparation' sections
Moving the user context logic out of the kernel inheritance hierarchy.
Added subscriber options to HttpCache
Move symfony http-cache support to the FOSHttpCache library for reusability.

Deprecate HttpCache in favor of EventDispatchingHttpCache