This reverts commit dd98280e.

Avoid loading the ActiveRecord::SessionStore class on initialization if it is not in use [#2737 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Conflicts:
	activemodel/lib/active_model/core.rb
	activemodel/test/cases/state_machine/event_test.rb
	activemodel/test/cases/state_machine/state_transition_test.rb
	activerecord/lib/active_record/validations.rb
	activerecord/test/cases/validations/i18n_validation_test.rb
	activeresource/lib/active_resource.rb
	activeresource/test/abstract_unit.rb

Break up DependencyModule's dual function of providing a "depend_on" DSL and "included" block DSL into separate modules. But, unify both approaches under AS::Concern.

This reverts commit 0cac68d3.

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

The FlashHash and friends causes a lot of needless session storing, when we know for a fact that there's no content in the flash. By not storing the empty hash in the session we save a lot of communication with the various session backends, while still keeping the same interface to the flash. [#2703 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Memoize cookies so that updates to cookies are available in the current request. [#2733 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Added support to new callbacks for around filter object that respond to :before & :after used in before|after callbacks

Make the default 500 Internal Server Error page more friendly. Many people don't know they're supposed to look in the log files. [#2716 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

ensure initialize_database_middleware doesn't use ActionController if action_controller framework is not enabled [#2680 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

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

ActionController::Flash::FlashHash.use now returns either the value corresponding to the passed key or itself when no key is passed [#1792 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

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

Fix failing CI test (broken in 2daac47d or e693f45e): make test_multipart_with_template_path_with_dots only test path with dots, and stop failing on unrelated mimetype assertion. The image/jpeg multipart content type is already tested in test_explicitly_multipart_messages.
Signed-off-by: NYehuda Katz <wycats@yehuda-katzs-macbookpro41.local>

This generator creates a new model as a subclass of an existing model and the unit test for that model.  Lets users avoid having to manually delete the fixtures and migration or remember to pass those arguments.

[#2702 state:committed]
Signed-off-by: NMichael Koziarski <michael@koziarski.com>

  * Removing the dependency on AD::Request and AD::Response
  * Moving the logic for the request and response object
    into a new module that is included by default.
  * Changing Renderer and Redirector to use self.headers,
    self.content_type, and self.status, which have very basic
    default implementations on AC::Http. When RackConvenience
    is included (which it is by default on AC::Base), the full
    Request/Response logic is used instead of the simple logic.