[#3467 state:resolved]
Signed-off-by: NEloy Duran <eloy.de.enige@gmail.com>

When rendering layouts with blocks, use #capture to avoid assuming that the return value is the block's content.
Signed-off-by: NYehuda Katz <wycats@Yehuda-Katz.local>

Update AC::Middleware to play better with the normal AC::Metal stack. This required stopping to use #call for non-rack-related stuff

Extracted localized_cache.rb from ActionController, added it to AbstractController and made ActionMailer use it.

Move all render and layout pieces required in ActionMailer from ActionController to AbstractController.

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

AS::Notifications.subscribe blocks are now yielded the arguments to pass to AS::Notifications::Event.new

Signed-off-by: NJoshua Peek <josh@joshpeek.com>