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
Changing default donation amount
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
Making the header width fixed until we have responsive design.
Merge pull request #5546 from edx/sanchez/update_default_donation_amount

Changing default donation amount
Merge pull request #5288 from edx/split/info_perf

Upgrade pymongo
Merge pull request #5549 from edx/sanchez/increase-min-header-width

Making the header width fixed until we have responsive design.
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.