v0.4.1

Clean up.

v0.4

Add support for "stale-while-revalidate". The re-validation will occur at the end of the script or when CacheMiddleware::purgeReValidation() is called.
You must set the client with CacheMiddleware::setClient(Client) before.

v0.3

• use doctrine/cache
• support only validation

v0.2

Adding support of:

• Cache-Control:no-cache
• Only cache HEAD and GET

v0.1

Supported:

• Expires
• Cache-Control
  • max-age
  • no-store
• Etag
• Last-Modified