Needed to rearrange the label of the checkbox

LEARNER-4230

LEARNER-4068

available.

[LEARNER-3898]

This reverts commit 4946b6b2.

Pagination should be standard and easy to adopt so moved the paginators
into the edx_rest_framework_extensions package so they can be easily
installed into other app/projects

In SailThru, randomly set a var value of 0-9 on each user upon signup.

LEARNER-4177

Fixes for new design as per instruction in this ticket.

LEARNER-3131

* Implement a ViewedEvent handling system which calls handlers when a
  block has been viewed for 5 seconds (configurable).
* Hook up Verticals to register their children blocks with this event,
  and submit completions once seen.

OSPR-2093
OC-3358

The Paragon+Bootstrap work wasn't ready yet, so this is using leanModal. This also cleans up some of the instructor formatting.

and enable lazy connections by default.

cf https://github.com/dennisv/django-storage-swift/pull/97

Signed-off-by: Tomasz Gargas <tomasz@opencraft.com>

Signed-off-by: Tomasz Gargas <tomasz@opencraft.com>

EDUCATOR-2189