add pyfs service
Refactored expected indices after email w/ mongo
Key order has no bearing on key order in queries other than for
Key order should be by greatest to least cardinality
Added sparse and unique declarations.
code clean
Text changes for Email Sent by addition
Outline for release notes
Removed grading and drag'n'drop
Reword course rerun notification
Updating the platform header styles to match new site styles.

Putting the new edx header behind a feature flag.
Merge pull request #4938 from edx/benmcmorran/reword-rerun-note

Reword course rerun notification
Unflag Group Configurations, Render only existing children in staff view of split_test.
Define SELENIUM_DRIVER_LOG_DIR in paver bok-choy command
Merge pull request #4949 from edx/zoldak/define-log-dir

Define SELENIUM_DRIVER_LOG_DIR in paver bok-choy command
Add bokchoy tests for course reruns
Merge pull request #4948 from edx/christina/last-group-config-pr

Unflag Group Configurations, Render only existing children in staff view...
Unpollute JavaScript global namespace

As these variables were being assigned without being explicitly
declared, they were implicitly added to the global namespace.

This commit removes 59 variables from the global namespace.
Remove superfluous whitespace and comments
Avoid use of Array/Object constructors

Array and Object constructors, as opposed to their literal values ('[]'
and '{}'), incur additional overhead and are less effectively optimized
by the compiler.
Merge pull request #4936 from edx/benmcmorran/bokchoy-course-reruns

Add bokchoy tests for course reruns
Merge pull request #4879 from edx/sanchez/update-platform-header

Updating the platform header styles to match new site styles.
Merge pull request #4899 from edx/dhm/mongo_indices

Refactored expected indices after email w/ mongo