set overflow to scroll so that user can see full content with increased font size
TNL-256
image files with different extensions should generate thumbnails with distinct names (TNL-532)
Performance enhancements for unit tests
in test_contentstore, don't load the xml course if not necessary
Upgrade pymongo
LMS-11437
Test multiple threads linear growth
Remove unused credentials from mongo init
was breaking pymongo 2.7
tz aware
Make unit tests work on older mongo versions
Consistently ensure dog_stats_api tags are formatted correctly
Move JavaScript from dashboard template into its own module
Make HTML comments Mako comments
Added handling in gitlog for missing import logs

Fixes a template error that occurs when viewing a course's detailed
git import log. The problem happens for courses imported using methods
other than the `git_add_course` command.
Make password reset endpoint CSRF exempt

This is necessary for mobile apps
Merge pull request #5288 from edx/split/info_perf

Upgrade pymongo
Merge pull request #5431 from open-craft/datadog-wrapper

Consistently wrap the DataDog API to prevent logged errors & missing stats data
Merge pull request #5423 from mitocw/bdero/fix-gitlog-focused-error

Added handling in gitlog template for missing import logs
Dont' need error check call in old mongo on this test
pylint cleanup.
Merge pull request #5560 from edx/benp/improve-pylint-violations

pylint cleanup.
fix tracking log entry key child-id -> child_id
Endorsement username shouldn't be broken

If we endourse the answer of the question in discussion
the username link that is created is broken whereas it
should point to the userprofile.

TNL-188