Ensure details are frozen after @details_keys lookup. The implementation waits to freeze until the last required moment, to avoid duping hashes.

Improve performance of the rendering stack by freezing formats as a sign that they shouldn't be further modified.

Finish cleaning up rendering stack from views and move assigns evaluation to controller (so plugins and/or controllers can overwrite just one method).

Unify class_inheritable_accessor and extlib_inheritable_accessor and allow responder to be set in the class level.

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Renamed ActionController::Renderer to ActionController::Responder and ActionController::MimeResponds::Responder to ActionController::MimeResponds::Collector.

Add destroyed? to ActiveRecord, include tests for polymorphic urls for destroyed objects and refactor mime responds tests and documentation.

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Refactor Responder to only calculate available mime types. Those are sent to the controller that knows what to do with it (render a block or call default render).
Signed-off-by: NYehuda Katz <wycats@gmail.com>

Deprecate template, session, assigns, and layout accessors on response object. Instead access them through the controller instance. This mainly affects functional test assertions.

Signed-off-by: NPratik Naik <pratiknaik@gmail.com>