studio: nav - clicking anywhere but nav's dropdowns will close them, fixed link outline and is-selected styling

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

get to that page once they've logged in.

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

index. NOTE: didn't fix old wrong behavior of going to index if not
logged in and tried to navigate to a specific page. Will work on that
next.

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

Conflicts:
	cms/djangoapps/contentstore/views.py
	cms/static/js/views/settings/main_settings_view.js
	cms/templates/index.html
	cms/templates/settings.html

ensure old time had a value before comparing it to new time.

On 32-bit Python, this conversion could overflow, for example, for year 2099.  This conversion won't.

change timer to calculate relative duration in javascript

When checking types to convert data, don't forget about longs.  32-bit Pythons make longs from values that are ints on 64-bit Pythons.

Conflicts:
	common/djangoapps/util/converters.py

Resolving an LMS sidebar accordion issue in IE7

fix showing less than and greater than in code

We no longer need override_settings, Django has a better one.

Feature/victor/raw static files

- regexp was too complicated, didn't work

- needed for GWT'ed modules that rely on the filename to find dependencies

bug 155