ipython/ipython — pull request #2066 by Carreau (2012-06-30 18:35:10+00:00)
Title: [Notebook] Give some Love to read-only mode 

'Just' some if cases in the templates, and same in some key places in the JS to prevent cells to get focus or become edittable.

Remove Almost all action from menubar when read-only (leave print view, download and toggle header)
Remove Toolbar from notebook view.
Remove cluster tab in dashborad.