Use pre-generated reports for pep8/pylint when running diff-quality

Update docs readme

Model tests for verify_student flow.

Jkarni/feature/import feedback

    And fixes for rebase-breakage.

disable buttons for legacy and beta instr dash

Fix navigation and grading acceptance tests

LMS: adds message styling to the separate instructor_2 Sass file

set max enrollment for downloads to 200

Studio: adds in instructional copy to user on when it is safe to leave the import view without harming an import process

Studio: revises import help/status copy to better reflect/generalize what is done with imported content

Add test cases for import status

Studio: revises general layout/styling of import view and adds in detail progress feedback after import (WIP)

Studio: removes import progress bar HTML and Sass; hides import status by default

Studio: revises import file upload success copy; sets up showing/hiding states for import status and additional messages

Studio: revises iconography and adds in success step in import status feedback

Studio: adds hidden styling back into import status UI

Hook up view

Fix getStatus function

Fixed grading tests

Captions are now removed from tab order when hidden

Use wrapped tar extraction

Bug fix - text_customization should not show in settings

Also change test to not expect text_customization

Signed-off-by: Julian Arni <julian@edx.org>

Use a forked version of lettuce that fixes a bug with tag inheritance

requirejs in Studio

register.html: Corrected help text for username & name fields

Add in the static namespace to the new template