fix ttl cascade so the parent block will get the smallest ttl possible available from its child
Fix unit tests
move the HttpCacheHandler from the PageBundle to the BlockBundle
Add noop cache handler
add documentation
Add a response listener to alter the final client Response
Add documentation about BaseBlockService
fix javascripts and stylesheets when using cache backend
refactor the data collector to include cache information
Update container's names from the CMF
Merge pull request #96 from sonata-project/fix_cache_ttl_cascade

Fix various issues with cache management