Performance enhancements for unit tests
in test_contentstore, don't load the xml course if not necessary
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 #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.
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
Merge pull request #5558 from edx/dhm/bug_index_count

Dont' need error check call in old mongo on this test
Merge pull request #5535 from edx/dhm/unit_perf

Performance enhancements for unit tests
Merge pull request #5540 from mlkwaqas/waqas/tnl188-endorsement-username-link-broken

Endorsement username shouldn't be broken
Merge pull request #5547 from edx/gprice/password-reset-csrf-exempt

Make password reset endpoint CSRF exempt
Merge pull request #5541 from edx/will/dashboard-js-shame

Dashboard template cleanup
Removed Vitalsource e-reader information
Merge pull request #5572 from edx/markhoeber-doc-928

Removed Vitalsource e-reader information
Removing the feature flags for new header and footer.

Fix acceptance tests

Updating lettuce tests.

Revert the deletion of the original edx header and footer.

Renaming old header and footers to legacy files.

Add IS_EDX_DOMAIN flag for header.

Updating tests and django main template.

renaming the header files for microsite backwards compat.
Clean up after track selection experiment