This reverts commit 7e8b7f46.

Conflicts:

	railties/lib/rails/plugin.rb

Fix up AR extension by using Railties module instead of Rails and requiring ControllerRuntime at initialization time instead of boot

Removes load path change from commit bb153f42.

(Needs consensus that these are appropriate defaults.)

This reverts commit 66604b2e.

Conflicts:
	actionmailer/lib/action_mailer.rb

Signed-off-by: NCarl Lerche <carllerche@mac.com>

Signed-off-by: NCarl Lerche <carllerche@mac.com>

For some reason the current class_inheritable_accessor does not play nice with included hooks. class_inheritable_accessor will be revised shortly.