studio - soft landing and nav: slight visual tweaks to soft landing UI and added in support link + new tab/window and modal management JS

studio - course nav: corrected JS behavior of dropdowns to hide all others and self-hide appropriately

Merge branch 'feature/btalbot/studio-softlanding' of github.com:MITx/mitx into feature/btalbot/studio-softlanding

Patch peer grading tab to work

Allow policy.json to disable progress graph

Revert "Fix permissions bug and add test cases for django comment client...

a model change as well)

This reverts commit 05354745.

This reverts commit e7450874.

Fix bug where we imported two functions w/ the same name

change from throwing a Http404 exception, which I believe will try to re...

undo pipeline changes

change from throwing a Http404 exception, which I believe will try to render a static 404.html template - and ironically triggers a 500 server error. Just create a HttpResponse and set the status_code to 404.

studio - resolved HTML display issue with bold and blockquote

Feature/vik/peer grading xmodule