Merge pull request #4933 from Kelketek/jp_authors

Added Jonathan Piacenti to the AUTHORS file.
Verify children are rendered before allowing drop into collapsed parent.

TNL-56
Reword course rerun notification
Clarify the effect of changing problems
Merge pull request #4903 from edx/ahodges/doc/DOC263

Clarify the effect of changing problems
Update translations (autogenerated message)
Merge pull request #4940 from edx/sarina/082214-translation-update

Update translations (autogenerated message)
Merge pull request #4923 from edx/zub/bugfix/tnl56-dragdropintocollapsedunit

populate children of unit collapsed drop location
Make Studio and LMS register pages use the same language
Updating the platform header styles to match new site styles.

Putting the new edx header behind a feature flag.
Merge pull request #4934 from edx/benmcmorran/course-settings-error

Fix error when changing course details on split
Merge pull request #4944 from edx/sarina/make-studio-reg-copy-match

Make Studio and LMS register pages use the same language
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