Both python 3 related but different reasons. numpy dropped python 3
support and faulthandler was pulled into python in python 3.3

Upgrade the django-wiki version.

Push notifications was only ever setup to connect to Parse.com a service
that has been discontinued.  Since we haven't replaced the functionality
for a few years now, remove this dead code.

In cms/templates/js/course_info_update.underscore we're allowing content
to not be escaped because this is by design according to the tests.
Long term there should be a better fix for this but for now this is
intended behavior.

JIRA:EDUCATOR-4435

JIRA:EDUCATOR-4367

This would patch all templates (django/mako)
for a possible XSS code injection via
translation files by html escaping them..

LEARNER-4632

instead of localhost