Fixing horizontal scroll bug for long component titles

Fix exception-related PEP8 issues

Remove antiquated trace script

Fix diff branch paver option to take value

Create new API endpoint for email optin

Updating the design of the email opt in end point.

Updating API call based on new Org Model.

Modify error message

This library was originally written to trace local variables. In the
more than two years since it was originally written, the only update it
has received was to remove PEP8/PyLint/quality violations.

It's hard to imagine that this is still useful to anyone, though I'm
open to discussion.

Creating a new Organization based preference model.

TNL-406: Long component title causes horizontal scroll
updated the SASS file to address the horizontal scroll issue in long
component titles’ hover bubble.

Fix syntax-related PEP8 issues

should be 'if cond is True:' or 'if cond:'

should be 'if cond is None:'

between brackets

Add an endpoint for syncing a user's course status metadata

Remove ability to add new ORA 1 problems to courses

Fix continuation-related PEP8 issues

Fixed HD button in firefox.

TNL-536

LoginEnrollmentTestCase.setup_user: Attribute 'user' defined outside __init__

divide_chemical_expression: map/filter on lambda could be replaced by
comprehension

Command.handle: Invalid name "d" for type variable
(should match [a-z_][a-z0-9_]{2,30}$)

between brackets

for visual indent

for visual indent

for hanging indent

does not distinguish itself from next logical line

visual indentation