Document Editor: Week 9

I spent Tuesday on fixing code issues which were pointed by Daniel. Then I started working on revisions for the student proposal. It was pretty simple, but there was a problem. StudentProposal model contains abstract text property, which in my opinion should also be revisable. But current implementation of the RevisionInfo and RevisionContent classes are not able to store two content fields. This issue is to be resolved.

At the end of the week Mario implemented client-side redirects for the lists framework. I used this feature to re-implement "Show diff" button, Now it looks and behaves right. New version of the "Manage revisions" view was uploaded to my GAE instance.