schneems/wicked — pull request #29 by Irio (2012-07-28 01:17:15+00:00)
Title: Store steps history feature

This feature aims something like this:

**List of steps**

`start step` -> `computer_upload` -> `facebook_upload` -> `instagram upload` -> `crop`

Since I will do just one upload, where crop's back link should get me?

With a step_stack stored in user's session, I have a history of previous accessed steps and I can provide a more precise `previous_wizard_path`.