due to the MixedModuleStore pending release, we need to make enrollment start/end dates editable in Studio

STUD-669.

Forgot an import

LMS was arbitrarily chosen for now.

Fixed up pylint and pep8 errors

Fixed up pylint and pep8 errors

Changed naming to be better

Changed Sauce Info to obtaining a JSON string

Changed to have a default for device since it isn't always needed

Tags are more clear

Fixed stylistic issues

This logic also covers if a lettuce_browser is specified

Removing browser matrix from readme

Also, now lettuce browser can be specified by jenkins

Conflicts:
	common/djangoapps/terrain/browser.py

Added comment about the feature

Conflicts:
	common/djangoapps/terrain/browser.py

Added tags for tests that will not work on Sauce

Changed build name

Tightened up logic

Conflicts:
	common/djangoapps/terrain/browser.py

Added flag for session name

Refactored more for feature flags

Conflicts:
	common/djangoapps/terrain/browser.py

Changed way feature flag was checked

Conflicts:
	common/djangoapps/terrain/browser.py

Previously the file upload dialog was PDF- and textbook-specific. The
changes are adding parameters to the FileUpload model for the file
type, and adding an onSuccess callback to the UploadDialog view. Also
moved upload-specific SASS into its own file.

The django_nose it is very useful, even outside the test
environment. For example, it lets you to easily run test from
manage.py without additional changes to the test packages.

Better wording of commit

Workaround for issue

Better wording of commit

Fixed spacing

add a few debug messages to get localhost debug information. Also partition out the MongoDjangoToolbar configuration into a separate env config. This is because doing imports on large courses grinds localdev to a halt due to all the stack trace generation.

Studio: adds in new Sass file for Studio-specific
xmodule presentation and removes full screen control
from video alpha display UI.
Adds jasmine test for subtitles scroll.
Adds tests for caption change height functionality.
Uses gettext wrapper.
Fixes caption change height functionality.
Removes IS_CMS, isCms flags.