openwebwork/webwork2 — pull request #435 by pstaabp (2014-06-25 18:00:21+00:00)
Title: Ww3 feature/back button

creates a back and forward button to ww3.

To test:
1. Go to where localStorage is stored (Resources tab in Chrome). Delete the storage for the key ww3_cm_state.
2. visit many different views.
3. Then use the back and forward buttons to test.