Replace references to ActiveSupport::SecureRandom with just SecureRandom, and require 'securerandom' from the stdlib when active support is required.

Also, no need to include dependencies in AS::Concerns inside included blocks.

Revert "Take into account time spent in AR even if a redirect occurs or if it is after the render" because it's causing test failures about missing db_during_render.

This reverts commit 60b55bac.

Sprocket was trying to look for these two things:

* `Rails::VERSION::STRING`
* `.initializer(str)` in `Rails::Engine`

This commit added require to version.rb into Abstract Unit, and mocking the `Rails::Engine.initializer` in `sprockets_helper_test.rb`

renamed the wrap_parameters :only and :except options to :include and :exclude to make it consistent with controller filters